Home / 725,229.04-999,776.70-509,700.19

Finding the Fourth Proportional to 725,229.04, 999,776.70 and 509,700.19

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Solution

The fourth proportional to 725,229.04, 999,776.70 and 509,700.19 is: 702,655.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,229.04 : 999,776.70 = 509,700.19 : x
  2. Step 2: Convert to fraction form
    725,229.04/999,776.70 = 509,700.19/x
  3. Step 3: Cross multiply
    725,229.04x = 999,776.70 × 509,700.19
  4. Step 4: Simplify right side
    725,229.04x = 509,586,373,947.57
  5. Step 5: Solve for x
    x = 509,586,373,947.57/725,229.04
  6. Step 6: Final answer
    x = 702,655.78

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.