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Finding the Fourth Proportional to 658,658.02, 908,924.78 and 372,171.96

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Solution

The fourth proportional to 658,658.02, 908,924.78 and 372,171.96 is: 513,584.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,658.02 : 908,924.78 = 372,171.96 : x
  2. Step 2: Convert to fraction form
    658,658.02/908,924.78 = 372,171.96/x
  3. Step 3: Cross multiply
    658,658.02x = 908,924.78 × 372,171.96
  4. Step 4: Simplify right side
    658,658.02x = 338,276,316,865.17
  5. Step 5: Solve for x
    x = 338,276,316,865.17/658,658.02
  6. Step 6: Final answer
    x = 513,584.15

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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.