Home / 724,100.90-1,086,540.15-303,419.30

Finding the Fourth Proportional to 724,100.90, 1,086,540.15 and 303,419.30

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Solution

The fourth proportional to 724,100.90, 1,086,540.15 and 303,419.30 is: 455,291.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,100.90 : 1,086,540.15 = 303,419.30 : x
  2. Step 2: Convert to fraction form
    724,100.90/1,086,540.15 = 303,419.30/x
  3. Step 3: Cross multiply
    724,100.90x = 1,086,540.15 × 303,419.30
  4. Step 4: Simplify right side
    724,100.90x = 329,677,251,734.90
  5. Step 5: Solve for x
    x = 329,677,251,734.90/724,100.90
  6. Step 6: Final answer
    x = 455,291.87

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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.