Home / 482,912.30-724,336.05-127,918.70

Finding the Fourth Proportional to 482,912.30, 724,336.05 and 127,918.70

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Solution

The fourth proportional to 482,912.30, 724,336.05 and 127,918.70 is: 191,869.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,912.30 : 724,336.05 = 127,918.70 : x
  2. Step 2: Convert to fraction form
    482,912.30/724,336.05 = 127,918.70/x
  3. Step 3: Cross multiply
    482,912.30x = 724,336.05 × 127,918.70
  4. Step 4: Simplify right side
    482,912.30x = 92,656,125,879.14
  5. Step 5: Solve for x
    x = 92,656,125,879.14/482,912.30
  6. Step 6: Final answer
    x = 191,869.47

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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.