Home / 718,123.04-990,645.36-548,061.92

Finding the Fourth Proportional to 718,123.04, 990,645.36 and 548,061.92

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Solution

The fourth proportional to 718,123.04, 990,645.36 and 548,061.92 is: 756,047.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,123.04 : 990,645.36 = 548,061.92 : x
  2. Step 2: Convert to fraction form
    718,123.04/990,645.36 = 548,061.92/x
  3. Step 3: Cross multiply
    718,123.04x = 990,645.36 × 548,061.92
  4. Step 4: Simplify right side
    718,123.04x = 542,934,998,040.69
  5. Step 5: Solve for x
    x = 542,934,998,040.69/718,123.04
  6. Step 6: Final answer
    x = 756,047.32

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Double scale
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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.