Home / 1,275,563,256.34-1,760,277,279.45-688,852,392.34

Finding the Fourth Proportional to 1,275,563,256.34, 1,760,277,279.45 and 688,852,392.34

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Solution

The fourth proportional to 1,275,563,256.34, 1,760,277,279.45 and 688,852,392.34 is: 950,616,293.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,275,563,256.34 : 1,760,277,279.45 = 688,852,392.34 : x
  2. Step 2: Convert to fraction form
    1,275,563,256.34/1,760,277,279.45 = 688,852,392.34/x
  3. Step 3: Cross multiply
    1,275,563,256.34x = 1,760,277,279.45 × 688,852,392.34
  4. Step 4: Simplify right side
    1,275,563,256.34x = 1,212,571,215,130,879,232
  5. Step 5: Solve for x
    x = 1,212,571,215,130,879,232/1,275,563,256.34
  6. Step 6: Final answer
    x = 950,616,293.71

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Double scale
Find fourth proportional to 1,275,563,257.34, 1,760,277,280.83 and 688,852,393.34
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.