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Finding the Fourth Proportional to 652,033.20, 976,737.60 and 439,456.80

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Solution

The fourth proportional to 652,033.20, 976,737.60 and 439,456.80 is: 658,300.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,033.20 : 976,737.60 = 439,456.80 : x
  2. Step 2: Convert to fraction form
    652,033.20/976,737.60 = 439,456.80/x
  3. Step 3: Cross multiply
    652,033.20x = 976,737.60 × 439,456.80
  4. Step 4: Simplify right side
    652,033.20x = 429,233,980,135.68
  5. Step 5: Solve for x
    x = 429,233,980,135.68/652,033.20
  6. Step 6: Final answer
    x = 658,300.80

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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.