Home / 748,910.20-1,123,365.30-299,700.40

Finding the Fourth Proportional to 748,910.20, 1,123,365.30 and 299,700.40

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Solution

The fourth proportional to 748,910.20, 1,123,365.30 and 299,700.40 is: 449,550.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,910.20 : 1,123,365.30 = 299,700.40 : x
  2. Step 2: Convert to fraction form
    748,910.20/1,123,365.30 = 299,700.40/x
  3. Step 3: Cross multiply
    748,910.20x = 1,123,365.30 × 299,700.40
  4. Step 4: Simplify right side
    748,910.20x = 336,673,029,756.12
  5. Step 5: Solve for x
    x = 336,673,029,756.12/748,910.20
  6. Step 6: Final answer
    x = 449,550.60

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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.