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Finding the Fourth Proportional to 588,911.20, 883,366.80 and 389,456.80

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Solution

The fourth proportional to 588,911.20, 883,366.80 and 389,456.80 is: 584,185.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    588,911.20 : 883,366.80 = 389,456.80 : x
  2. Step 2: Convert to fraction form
    588,911.20/883,366.80 = 389,456.80/x
  3. Step 3: Cross multiply
    588,911.20x = 883,366.80 × 389,456.80
  4. Step 4: Simplify right side
    588,911.20x = 344,033,207,154.24
  5. Step 5: Solve for x
    x = 344,033,207,154.24/588,911.20
  6. Step 6: Final answer
    x = 584,185.20

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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.