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Finding the Fourth Proportional to 482,668.80, 724,003.20 and 305,959.20

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Solution

The fourth proportional to 482,668.80, 724,003.20 and 305,959.20 is: 458,938.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,668.80 : 724,003.20 = 305,959.20 : x
  2. Step 2: Convert to fraction form
    482,668.80/724,003.20 = 305,959.20/x
  3. Step 3: Cross multiply
    482,668.80x = 724,003.20 × 305,959.20
  4. Step 4: Simplify right side
    482,668.80x = 221,515,439,869.44
  5. Step 5: Solve for x
    x = 221,515,439,869.44/482,668.80
  6. Step 6: Final answer
    x = 458,938.80

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Similar ratio
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1.5x scale

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.