Home / 1,438,797.72-1,986,132.08-981,422.04

Finding the Fourth Proportional to 1,438,797.72, 1,986,132.08 and 981,422.04

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Solution

The fourth proportional to 1,438,797.72, 1,986,132.08 and 981,422.04 is: 1,354,765.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,797.72 : 1,986,132.08 = 981,422.04 : x
  2. Step 2: Convert to fraction form
    1,438,797.72/1,986,132.08 = 981,422.04/x
  3. Step 3: Cross multiply
    1,438,797.72x = 1,986,132.08 × 981,422.04
  4. Step 4: Simplify right side
    1,438,797.72x = 1,949,233,797,663.04
  5. Step 5: Solve for x
    x = 1,949,233,797,663.04/1,438,797.72
  6. Step 6: Final answer
    x = 1,354,765.70

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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.