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Finding the Fourth Proportional to 389,640.60, 584,460.90 and 301,067.10

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Solution

The fourth proportional to 389,640.60, 584,460.90 and 301,067.10 is: 451,600.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,640.60 : 584,460.90 = 301,067.10 : x
  2. Step 2: Convert to fraction form
    389,640.60/584,460.90 = 301,067.10/x
  3. Step 3: Cross multiply
    389,640.60x = 584,460.90 × 301,067.10
  4. Step 4: Simplify right side
    389,640.60x = 175,961,948,226.39
  5. Step 5: Solve for x
    x = 175,961,948,226.39/389,640.60
  6. Step 6: Final answer
    x = 451,600.65

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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.