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Finding the Fourth Proportional to 488,350.80, 731,651.40 and 301,143.60

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Solution

The fourth proportional to 488,350.80, 731,651.40 and 301,143.60 is: 451,175.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,350.80 : 731,651.40 = 301,143.60 : x
  2. Step 2: Convert to fraction form
    488,350.80/731,651.40 = 301,143.60/x
  3. Step 3: Cross multiply
    488,350.80x = 731,651.40 × 301,143.60
  4. Step 4: Simplify right side
    488,350.80x = 220,332,136,541.04
  5. Step 5: Solve for x
    x = 220,332,136,541.04/488,350.80
  6. Step 6: Final answer
    x = 451,175.95

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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.