Home / 838,278.84-1,257,418.68-277,313.34

Finding the Fourth Proportional to 838,278.84, 1,257,418.68 and 277,313.34

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Solution

The fourth proportional to 838,278.84, 1,257,418.68 and 277,313.34 is: 415,970.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,278.84 : 1,257,418.68 = 277,313.34 : x
  2. Step 2: Convert to fraction form
    838,278.84/1,257,418.68 = 277,313.34/x
  3. Step 3: Cross multiply
    838,278.84x = 1,257,418.68 × 277,313.34
  4. Step 4: Simplify right side
    838,278.84x = 348,698,973,929.19
  5. Step 5: Solve for x
    x = 348,698,973,929.19/838,278.84
  6. Step 6: Final answer
    x = 415,970.15

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.