Home / 747,152.88-1,120,725.45-291,790.32

Finding the Fourth Proportional to 747,152.88, 1,120,725.45 and 291,790.32

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Solution

The fourth proportional to 747,152.88, 1,120,725.45 and 291,790.32 is: 437,683.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,152.88 : 1,120,725.45 = 291,790.32 : x
  2. Step 2: Convert to fraction form
    747,152.88/1,120,725.45 = 291,790.32/x
  3. Step 3: Cross multiply
    747,152.88x = 1,120,725.45 × 291,790.32
  4. Step 4: Simplify right side
    747,152.88x = 327,016,837,687.64
  5. Step 5: Solve for x
    x = 327,016,837,687.64/747,152.88
  6. Step 6: Final answer
    x = 437,683.97

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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.