Home / 748,937.40-1,123,406.10-327,766.20

Finding the Fourth Proportional to 748,937.40, 1,123,406.10 and 327,766.20

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Solution

The fourth proportional to 748,937.40, 1,123,406.10 and 327,766.20 is: 491,649.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,937.40 : 1,123,406.10 = 327,766.20 : x
  2. Step 2: Convert to fraction form
    748,937.40/1,123,406.10 = 327,766.20/x
  3. Step 3: Cross multiply
    748,937.40x = 1,123,406.10 × 327,766.20
  4. Step 4: Simplify right side
    748,937.40x = 368,214,548,453.82
  5. Step 5: Solve for x
    x = 368,214,548,453.82/748,937.40
  6. Step 6: Final answer
    x = 491,649.30

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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.