Home / 1,538,391.57-2,123,002.80-850,079.34

Finding the Fourth Proportional to 1,538,391.57, 2,123,002.80 and 850,079.34

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Solution

The fourth proportional to 1,538,391.57, 2,123,002.80 and 850,079.34 is: 1,173,121.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,538,391.57 : 2,123,002.80 = 850,079.34 : x
  2. Step 2: Convert to fraction form
    1,538,391.57/2,123,002.80 = 850,079.34/x
  3. Step 3: Cross multiply
    1,538,391.57x = 2,123,002.80 × 850,079.34
  4. Step 4: Simplify right side
    1,538,391.57x = 1,804,720,807,893.09
  5. Step 5: Solve for x
    x = 1,804,720,807,893.09/1,538,391.57
  6. Step 6: Final answer
    x = 1,173,121.88

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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.