Home / 801,322.38-1,105,790.70-438,739.68

Finding the Fourth Proportional to 801,322.38, 1,105,790.70 and 438,739.68

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Solution

The fourth proportional to 801,322.38, 1,105,790.70 and 438,739.68 is: 605,442.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,322.38 : 1,105,790.70 = 438,739.68 : x
  2. Step 2: Convert to fraction form
    801,322.38/1,105,790.70 = 438,739.68/x
  3. Step 3: Cross multiply
    801,322.38x = 1,105,790.70 × 438,739.68
  4. Step 4: Simplify right side
    801,322.38x = 485,154,257,864.98
  5. Step 5: Solve for x
    x = 485,154,257,864.98/801,322.38
  6. Step 6: Final answer
    x = 605,442.04

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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.