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Finding the Fourth Proportional to 576,472.40, 865,680.60 and 481,605.20

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Solution

The fourth proportional to 576,472.40, 865,680.60 and 481,605.20 is: 723,219.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,472.40 : 865,680.60 = 481,605.20 : x
  2. Step 2: Convert to fraction form
    576,472.40/865,680.60 = 481,605.20/x
  3. Step 3: Cross multiply
    576,472.40x = 865,680.60 × 481,605.20
  4. Step 4: Simplify right side
    576,472.40x = 416,916,278,499.12
  5. Step 5: Solve for x
    x = 416,916,278,499.12/576,472.40
  6. Step 6: Final answer
    x = 723,219.84

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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.