Home / 870,260.84-1,200,564.39-564,414.34

Finding the Fourth Proportional to 870,260.84, 1,200,564.39 and 564,414.34

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Solution

The fourth proportional to 870,260.84, 1,200,564.39 and 564,414.34 is: 778,635.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,260.84 : 1,200,564.39 = 564,414.34 : x
  2. Step 2: Convert to fraction form
    870,260.84/1,200,564.39 = 564,414.34/x
  3. Step 3: Cross multiply
    870,260.84x = 1,200,564.39 × 564,414.34
  4. Step 4: Simplify right side
    870,260.84x = 677,615,757,809.35
  5. Step 5: Solve for x
    x = 677,615,757,809.35/870,260.84
  6. Step 6: Final answer
    x = 778,635.24

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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.