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Finding the Fourth Proportional to 866,773.60, 1,299,956.28 and 487,855.60

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Solution

The fourth proportional to 866,773.60, 1,299,956.28 and 487,855.60 is: 731,668.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,773.60 : 1,299,956.28 = 487,855.60 : x
  2. Step 2: Convert to fraction form
    866,773.60/1,299,956.28 = 487,855.60/x
  3. Step 3: Cross multiply
    866,773.60x = 1,299,956.28 × 487,855.60
  4. Step 4: Simplify right side
    866,773.60x = 634,190,950,953.17
  5. Step 5: Solve for x
    x = 634,190,950,953.17/866,773.60
  6. Step 6: Final answer
    x = 731,668.51

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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.