Home / 724,028.06-999,143.46-401,731.22

Finding the Fourth Proportional to 724,028.06, 999,143.46 and 401,731.22

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Solution

The fourth proportional to 724,028.06, 999,143.46 and 401,731.22 is: 554,380.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,028.06 : 999,143.46 = 401,731.22 : x
  2. Step 2: Convert to fraction form
    724,028.06/999,143.46 = 401,731.22/x
  3. Step 3: Cross multiply
    724,028.06x = 999,143.46 × 401,731.22
  4. Step 4: Simplify right side
    724,028.06x = 401,387,121,140.82
  5. Step 5: Solve for x
    x = 401,387,121,140.82/724,028.06
  6. Step 6: Final answer
    x = 554,380.61

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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.