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Finding the Fourth Proportional to 629,321.52, 868,469.66 and 357,395.08

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Solution

The fourth proportional to 629,321.52, 868,469.66 and 357,395.08 is: 493,208.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,321.52 : 868,469.66 = 357,395.08 : x
  2. Step 2: Convert to fraction form
    629,321.52/868,469.66 = 357,395.08/x
  3. Step 3: Cross multiply
    629,321.52x = 868,469.66 × 357,395.08
  4. Step 4: Simplify right side
    629,321.52x = 310,386,783,613.27
  5. Step 5: Solve for x
    x = 310,386,783,613.27/629,321.52
  6. Step 6: Final answer
    x = 493,208.60

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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.