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Finding the Fourth Proportional to 484,810.20, 728,381.70 and 433,488.60

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Solution

The fourth proportional to 484,810.20, 728,381.70 and 433,488.60 is: 651,275.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,810.20 : 728,381.70 = 433,488.60 : x
  2. Step 2: Convert to fraction form
    484,810.20/728,381.70 = 433,488.60/x
  3. Step 3: Cross multiply
    484,810.20x = 728,381.70 × 433,488.60
  4. Step 4: Simplify right side
    484,810.20x = 315,745,163,398.62
  5. Step 5: Solve for x
    x = 315,745,163,398.62/484,810.20
  6. Step 6: Final answer
    x = 651,275.83

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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.