Home / 1,690,422.72-2,332,677.60-926,422.08

Finding the Fourth Proportional to 1,690,422.72, 2,332,677.60 and 926,422.08

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Solution

The fourth proportional to 1,690,422.72, 2,332,677.60 and 926,422.08 is: 1,278,404.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,690,422.72 : 2,332,677.60 = 926,422.08 : x
  2. Step 2: Convert to fraction form
    1,690,422.72/2,332,677.60 = 926,422.08/x
  3. Step 3: Cross multiply
    1,690,422.72x = 2,332,677.60 × 926,422.08
  4. Step 4: Simplify right side
    1,690,422.72x = 2,161,044,034,161.41
  5. Step 5: Solve for x
    x = 2,161,044,034,161.41/1,690,422.72
  6. Step 6: Final answer
    x = 1,278,404.51

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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.