Home / 717,372.05-990,081.06-545,006.38

Finding the Fourth Proportional to 717,372.05, 990,081.06 and 545,006.38

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Solution

The fourth proportional to 717,372.05, 990,081.06 and 545,006.38 is: 752,190.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,372.05 : 990,081.06 = 545,006.38 : x
  2. Step 2: Convert to fraction form
    717,372.05/990,081.06 = 545,006.38/x
  3. Step 3: Cross multiply
    717,372.05x = 990,081.06 × 545,006.38
  4. Step 4: Simplify right side
    717,372.05x = 539,600,494,417.16
  5. Step 5: Solve for x
    x = 539,600,494,417.16/717,372.05
  6. Step 6: Final answer
    x = 752,190.57

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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.