Home / 717,371.05-990,079.68-545,005.38

Finding the Fourth Proportional to 717,371.05, 990,079.68 and 545,005.38

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Solution

The fourth proportional to 717,371.05, 990,079.68 and 545,005.38 is: 752,189.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,371.05 : 990,079.68 = 545,005.38 : x
  2. Step 2: Convert to fraction form
    717,371.05/990,079.68 = 545,005.38/x
  3. Step 3: Cross multiply
    717,371.05x = 990,079.68 × 545,005.38
  4. Step 4: Simplify right side
    717,371.05x = 539,598,744,553.25
  5. Step 5: Solve for x
    x = 539,598,744,553.25/717,371.05
  6. Step 6: Final answer
    x = 752,189.18

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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.