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Finding the Fourth Proportional to 658,351.02, 987,329.68 and 342,635.70

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Solution

The fourth proportional to 658,351.02, 987,329.68 and 342,635.70 is: 513,851.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,351.02 : 987,329.68 = 342,635.70 : x
  2. Step 2: Convert to fraction form
    658,351.02/987,329.68 = 342,635.70/x
  3. Step 3: Cross multiply
    658,351.02x = 987,329.68 × 342,635.70
  4. Step 4: Simplify right side
    658,351.02x = 338,294,396,037.58
  5. Step 5: Solve for x
    x = 338,294,396,037.58/658,351.02
  6. Step 6: Final answer
    x = 513,851.10

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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.