Home / 724,000.40-1,086,351.20-297,851.15

Finding the Fourth Proportional to 724,000.40, 1,086,351.20 and 297,851.15

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Solution

The fourth proportional to 724,000.40, 1,086,351.20 and 297,851.15 is: 446,920.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,000.40 : 1,086,351.20 = 297,851.15 : x
  2. Step 2: Convert to fraction form
    724,000.40/1,086,351.20 = 297,851.15/x
  3. Step 3: Cross multiply
    724,000.40x = 1,086,351.20 × 297,851.15
  4. Step 4: Simplify right side
    724,000.40x = 323,570,954,223.88
  5. Step 5: Solve for x
    x = 323,570,954,223.88/724,000.40
  6. Step 6: Final answer
    x = 446,920.96

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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.