Home / 741,343.80-1,112,015.70-291,915.30

Finding the Fourth Proportional to 741,343.80, 1,112,015.70 and 291,915.30

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Solution

The fourth proportional to 741,343.80, 1,112,015.70 and 291,915.30 is: 437,872.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    741,343.80 : 1,112,015.70 = 291,915.30 : x
  2. Step 2: Convert to fraction form
    741,343.80/1,112,015.70 = 291,915.30/x
  3. Step 3: Cross multiply
    741,343.80x = 1,112,015.70 × 291,915.30
  4. Step 4: Simplify right side
    741,343.80x = 324,614,396,670.21
  5. Step 5: Solve for x
    x = 324,614,396,670.21/741,343.80
  6. Step 6: Final answer
    x = 437,872.95

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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.