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Finding the Fourth Proportional to 721,570.38, 994,952.22 and 539,699.46

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Solution

The fourth proportional to 721,570.38, 994,952.22 and 539,699.46 is: 744,175.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,570.38 : 994,952.22 = 539,699.46 : x
  2. Step 2: Convert to fraction form
    721,570.38/994,952.22 = 539,699.46/x
  3. Step 3: Cross multiply
    721,570.38x = 994,952.22 × 539,699.46
  4. Step 4: Simplify right side
    721,570.38x = 536,975,175,859.80
  5. Step 5: Solve for x
    x = 536,975,175,859.80/721,570.38
  6. Step 6: Final answer
    x = 744,175.75

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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.