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Finding the Fourth Proportional to 487,560.20, 732,215.10 and 471,813.80

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Solution

The fourth proportional to 487,560.20, 732,215.10 and 471,813.80 is: 708,567.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,560.20 : 732,215.10 = 471,813.80 : x
  2. Step 2: Convert to fraction form
    487,560.20/732,215.10 = 471,813.80/x
  3. Step 3: Cross multiply
    487,560.20x = 732,215.10 × 471,813.80
  4. Step 4: Simplify right side
    487,560.20x = 345,469,188,748.38
  5. Step 5: Solve for x
    x = 345,469,188,748.38/487,560.20
  6. Step 6: Final answer
    x = 708,567.25

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1.5x scale

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.