Home / 766,339.31-1,149,508.26-361,437.05

Finding the Fourth Proportional to 766,339.31, 1,149,508.26 and 361,437.05

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Solution

The fourth proportional to 766,339.31, 1,149,508.26 and 361,437.05 is: 542,155.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,339.31 : 1,149,508.26 = 361,437.05 : x
  2. Step 2: Convert to fraction form
    766,339.31/1,149,508.26 = 361,437.05/x
  3. Step 3: Cross multiply
    766,339.31x = 1,149,508.26 × 361,437.05
  4. Step 4: Simplify right side
    766,339.31x = 415,474,877,318.80
  5. Step 5: Solve for x
    x = 415,474,877,318.80/766,339.31
  6. Step 6: Final answer
    x = 542,155.24

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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.