Home / 1,120,122.19-1,545,885.27-690,391.27

Finding the Fourth Proportional to 1,120,122.19, 1,545,885.27 and 690,391.27

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Solution

The fourth proportional to 1,120,122.19, 1,545,885.27 and 690,391.27 is: 952,811.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,122.19 : 1,545,885.27 = 690,391.27 : x
  2. Step 2: Convert to fraction form
    1,120,122.19/1,545,885.27 = 690,391.27/x
  3. Step 3: Cross multiply
    1,120,122.19x = 1,545,885.27 × 690,391.27
  4. Step 4: Simplify right side
    1,120,122.19x = 1,067,265,690,964.88
  5. Step 5: Solve for x
    x = 1,067,265,690,964.88/1,120,122.19
  6. Step 6: Final answer
    x = 952,811.85

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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.