Home / 801,447.12-1,105,982.46-438,864.30

Finding the Fourth Proportional to 801,447.12, 1,105,982.46 and 438,864.30

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Solution

The fourth proportional to 801,447.12, 1,105,982.46 and 438,864.30 is: 605,624.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,447.12 : 1,105,982.46 = 438,864.30 : x
  2. Step 2: Convert to fraction form
    801,447.12/1,105,982.46 = 438,864.30/x
  3. Step 3: Cross multiply
    801,447.12x = 1,105,982.46 × 438,864.30
  4. Step 4: Simplify right side
    801,447.12x = 485,376,218,120.18
  5. Step 5: Solve for x
    x = 485,376,218,120.18/801,447.12
  6. Step 6: Final answer
    x = 605,624.76

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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.