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Finding the Fourth Proportional to 482,590.40, 723,885.60 and 127,640.30

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Solution

The fourth proportional to 482,590.40, 723,885.60 and 127,640.30 is: 191,460.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,590.40 : 723,885.60 = 127,640.30 : x
  2. Step 2: Convert to fraction form
    482,590.40/723,885.60 = 127,640.30/x
  3. Step 3: Cross multiply
    482,590.40x = 723,885.60 × 127,640.30
  4. Step 4: Simplify right side
    482,590.40x = 92,396,975,149.68
  5. Step 5: Solve for x
    x = 92,396,975,149.68/482,590.40
  6. Step 6: Final answer
    x = 191,460.45

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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.