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Finding the Fourth Proportional to 658,352.88, 987,332.49 and 342,637.56

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Solution

The fourth proportional to 658,352.88, 987,332.49 and 342,637.56 is: 513,853.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,352.88 : 987,332.49 = 342,637.56 : x
  2. Step 2: Convert to fraction form
    658,352.88/987,332.49 = 342,637.56/x
  3. Step 3: Cross multiply
    658,352.88x = 987,332.49 × 342,637.56
  4. Step 4: Simplify right side
    658,352.88x = 338,297,195,282.32
  5. Step 5: Solve for x
    x = 338,297,195,282.32/658,352.88
  6. Step 6: Final answer
    x = 513,853.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.