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Finding the Fourth Proportional to 482,814.40, 724,221.60 and 304,355.20

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Solution

The fourth proportional to 482,814.40, 724,221.60 and 304,355.20 is: 456,532.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,814.40 : 724,221.60 = 304,355.20 : x
  2. Step 2: Convert to fraction form
    482,814.40/724,221.60 = 304,355.20/x
  3. Step 3: Cross multiply
    482,814.40x = 724,221.60 × 304,355.20
  4. Step 4: Simplify right side
    482,814.40x = 220,420,609,912.32
  5. Step 5: Solve for x
    x = 220,420,609,912.32/482,814.40
  6. Step 6: Final answer
    x = 456,532.80

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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.