Home / 752,168.66-1,037,974.04-421,019.96

Finding the Fourth Proportional to 752,168.66, 1,037,974.04 and 421,019.96

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Solution

The fourth proportional to 752,168.66, 1,037,974.04 and 421,019.96 is: 580,997.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,168.66 : 1,037,974.04 = 421,019.96 : x
  2. Step 2: Convert to fraction form
    752,168.66/1,037,974.04 = 421,019.96/x
  3. Step 3: Cross multiply
    752,168.66x = 1,037,974.04 × 421,019.96
  4. Step 4: Simplify right side
    752,168.66x = 437,007,788,801.84
  5. Step 5: Solve for x
    x = 437,007,788,801.84/752,168.66
  6. Step 6: Final answer
    x = 580,997.07

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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.