Home / 482,865.80-724,295.10-145,905.80

Finding the Fourth Proportional to 482,865.80, 724,295.10 and 145,905.80

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Solution

The fourth proportional to 482,865.80, 724,295.10 and 145,905.80 is: 218,857.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,865.80 : 724,295.10 = 145,905.80 : x
  2. Step 2: Convert to fraction form
    482,865.80/724,295.10 = 145,905.80/x
  3. Step 3: Cross multiply
    482,865.80x = 724,295.10 × 145,905.80
  4. Step 4: Simplify right side
    482,865.80x = 105,678,856,001.58
  5. Step 5: Solve for x
    x = 105,678,856,001.58/482,865.80
  6. Step 6: Final answer
    x = 218,857.61

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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.