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Finding the Fourth Proportional to 384,908.80, 576,269.70 and 363,962.20

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Solution

The fourth proportional to 384,908.80, 576,269.70 and 363,962.20 is: 544,909.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,908.80 : 576,269.70 = 363,962.20 : x
  2. Step 2: Convert to fraction form
    384,908.80/576,269.70 = 363,962.20/x
  3. Step 3: Cross multiply
    384,908.80x = 576,269.70 × 363,962.20
  4. Step 4: Simplify right side
    384,908.80x = 209,740,387,805.34
  5. Step 5: Solve for x
    x = 209,740,387,805.34/384,908.80
  6. Step 6: Final answer
    x = 544,909.31

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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.