Home / 1,687,687.74-2,329,011.90-923,789.70

Finding the Fourth Proportional to 1,687,687.74, 2,329,011.90 and 923,789.70

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Solution

The fourth proportional to 1,687,687.74, 2,329,011.90 and 923,789.70 is: 1,274,831.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,687,687.74 : 2,329,011.90 = 923,789.70 : x
  2. Step 2: Convert to fraction form
    1,687,687.74/2,329,011.90 = 923,789.70/x
  3. Step 3: Cross multiply
    1,687,687.74x = 2,329,011.90 × 923,789.70
  4. Step 4: Simplify right side
    1,687,687.74x = 2,151,517,204,397.43
  5. Step 5: Solve for x
    x = 2,151,517,204,397.43/1,687,687.74
  6. Step 6: Final answer
    x = 1,274,831.33

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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.