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Finding the Fourth Proportional to 658,423.52, 908,698.20 and 371,962.06

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Solution

The fourth proportional to 658,423.52, 908,698.20 and 371,962.06 is: 513,349.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,423.52 : 908,698.20 = 371,962.06 : x
  2. Step 2: Convert to fraction form
    658,423.52/908,698.20 = 371,962.06/x
  3. Step 3: Cross multiply
    658,423.52x = 908,698.20 × 371,962.06
  4. Step 4: Simplify right side
    658,423.52x = 338,001,250,723.69
  5. Step 5: Solve for x
    x = 338,001,250,723.69/658,423.52
  6. Step 6: Final answer
    x = 513,349.30

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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.