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Finding the Fourth Proportional to 482,998.20, 724,497.30 and 315,036.60

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Solution

The fourth proportional to 482,998.20, 724,497.30 and 315,036.60 is: 472,554.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,998.20 : 724,497.30 = 315,036.60 : x
  2. Step 2: Convert to fraction form
    482,998.20/724,497.30 = 315,036.60/x
  3. Step 3: Cross multiply
    482,998.20x = 724,497.30 × 315,036.60
  4. Step 4: Simplify right side
    482,998.20x = 228,243,166,101.18
  5. Step 5: Solve for x
    x = 228,243,166,101.18/482,998.20
  6. Step 6: Final answer
    x = 472,554.90

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Similar ratio
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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.