Home / 482,918.20-724,838.10-412,876.60

Finding the Fourth Proportional to 482,918.20, 724,838.10 and 412,876.60

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Solution

The fourth proportional to 482,918.20, 724,838.10 and 412,876.60 is: 619,708.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,918.20 : 724,838.10 = 412,876.60 : x
  2. Step 2: Convert to fraction form
    482,918.20/724,838.10 = 412,876.60/x
  3. Step 3: Cross multiply
    482,918.20x = 724,838.10 × 412,876.60
  4. Step 4: Simplify right side
    482,918.20x = 299,268,690,278.46
  5. Step 5: Solve for x
    x = 299,268,690,278.46/482,918.20
  6. Step 6: Final answer
    x = 619,708.87

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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.