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Finding the Fourth Proportional to 539,041.11, 743,863.70 and 297,318.49

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Solution

The fourth proportional to 539,041.11, 743,863.70 and 297,318.49 is: 410,292.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,041.11 : 743,863.70 = 297,318.49 : x
  2. Step 2: Convert to fraction form
    539,041.11/743,863.70 = 297,318.49/x
  3. Step 3: Cross multiply
    539,041.11x = 743,863.70 × 297,318.49
  4. Step 4: Simplify right side
    539,041.11x = 221,164,431,306.52
  5. Step 5: Solve for x
    x = 221,164,431,306.52/539,041.11
  6. Step 6: Final answer
    x = 410,292.33

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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.