Home / 1,690,378.27-2,332,729.13-916,010.78

Finding the Fourth Proportional to 1,690,378.27, 2,332,729.13 and 916,010.78

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Solution

The fourth proportional to 1,690,378.27, 2,332,729.13 and 916,010.78 is: 1,264,098.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,690,378.27 : 2,332,729.13 = 916,010.78 : x
  2. Step 2: Convert to fraction form
    1,690,378.27/2,332,729.13 = 916,010.78/x
  3. Step 3: Cross multiply
    1,690,378.27x = 2,332,729.13 × 916,010.78
  4. Step 4: Simplify right side
    1,690,378.27x = 2,136,805,013,656.32
  5. Step 5: Solve for x
    x = 2,136,805,013,656.32/1,690,378.27
  6. Step 6: Final answer
    x = 1,264,098.73

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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.