Home / 724,028.28-999,143.82-401,731.44

Finding the Fourth Proportional to 724,028.28, 999,143.82 and 401,731.44

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Solution

The fourth proportional to 724,028.28, 999,143.82 and 401,731.44 is: 554,380.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,028.28 : 999,143.82 = 401,731.44 : x
  2. Step 2: Convert to fraction form
    724,028.28/999,143.82 = 401,731.44/x
  3. Step 3: Cross multiply
    724,028.28x = 999,143.82 × 401,731.44
  4. Step 4: Simplify right side
    724,028.28x = 401,387,485,575.70
  5. Step 5: Solve for x
    x = 401,387,485,575.70/724,028.28
  6. Step 6: Final answer
    x = 554,380.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.