Home / 748,912.20-1,123,368.30-329,008.20

Finding the Fourth Proportional to 748,912.20, 1,123,368.30 and 329,008.20

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Solution

The fourth proportional to 748,912.20, 1,123,368.30 and 329,008.20 is: 493,512.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,912.20 : 1,123,368.30 = 329,008.20 : x
  2. Step 2: Convert to fraction form
    748,912.20/1,123,368.30 = 329,008.20/x
  3. Step 3: Cross multiply
    748,912.20x = 1,123,368.30 × 329,008.20
  4. Step 4: Simplify right side
    748,912.20x = 369,597,382,320.06
  5. Step 5: Solve for x
    x = 369,597,382,320.06/748,912.20
  6. Step 6: Final answer
    x = 493,512.30

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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.