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Finding the Fourth Proportional to 643,699.26, 966,184.49 and 483,217.20

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Solution

The fourth proportional to 643,699.26, 966,184.49 and 483,217.20 is: 725,302.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,699.26 : 966,184.49 = 483,217.20 : x
  2. Step 2: Convert to fraction form
    643,699.26/966,184.49 = 483,217.20/x
  3. Step 3: Cross multiply
    643,699.26x = 966,184.49 × 483,217.20
  4. Step 4: Simplify right side
    643,699.26x = 466,876,965,149.27
  5. Step 5: Solve for x
    x = 466,876,965,149.27/643,699.26
  6. Step 6: Final answer
    x = 725,302.94

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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.