Home / 1,123,831.30-1,687,302.15-887,440.90

Finding the Fourth Proportional to 1,123,831.30, 1,687,302.15 and 887,440.90

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Solution

The fourth proportional to 1,123,831.30, 1,687,302.15 and 887,440.90 is: 1,332,389.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,831.30 : 1,687,302.15 = 887,440.90 : x
  2. Step 2: Convert to fraction form
    1,123,831.30/1,687,302.15 = 887,440.90/x
  3. Step 3: Cross multiply
    1,123,831.30x = 1,687,302.15 × 887,440.90
  4. Step 4: Simplify right side
    1,123,831.30x = 1,497,380,938,567.94
  5. Step 5: Solve for x
    x = 1,497,380,938,567.94/1,123,831.30
  6. Step 6: Final answer
    x = 1,332,389.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.