Home / 712,451.10-1,067,769.45-291,251.10

Finding the Fourth Proportional to 712,451.10, 1,067,769.45 and 291,251.10

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Solution

The fourth proportional to 712,451.10, 1,067,769.45 and 291,251.10 is: 436,505.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,451.10 : 1,067,769.45 = 291,251.10 : x
  2. Step 2: Convert to fraction form
    712,451.10/1,067,769.45 = 291,251.10/x
  3. Step 3: Cross multiply
    712,451.10x = 1,067,769.45 × 291,251.10
  4. Step 4: Simplify right side
    712,451.10x = 310,989,026,858.90
  5. Step 5: Solve for x
    x = 310,989,026,858.90/712,451.10
  6. Step 6: Final answer
    x = 436,505.79

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Half scale
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Double scale
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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.