Home / 748,834.30-1,123,251.45-433,906.30

Finding the Fourth Proportional to 748,834.30, 1,123,251.45 and 433,906.30

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Solution

The fourth proportional to 748,834.30, 1,123,251.45 and 433,906.30 is: 650,859.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,834.30 : 1,123,251.45 = 433,906.30 : x
  2. Step 2: Convert to fraction form
    748,834.30/1,123,251.45 = 433,906.30/x
  3. Step 3: Cross multiply
    748,834.30x = 1,123,251.45 × 433,906.30
  4. Step 4: Simplify right side
    748,834.30x = 487,385,880,639.14
  5. Step 5: Solve for x
    x = 487,385,880,639.14/748,834.30
  6. Step 6: Final answer
    x = 650,859.45

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Half scale
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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.