Home / 1,131,888.52-1,561,998.60-641,951.28

Finding the Fourth Proportional to 1,131,888.52, 1,561,998.60 and 641,951.28

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Solution

The fourth proportional to 1,131,888.52, 1,561,998.60 and 641,951.28 is: 885,888.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,888.52 : 1,561,998.60 = 641,951.28 : x
  2. Step 2: Convert to fraction form
    1,131,888.52/1,561,998.60 = 641,951.28/x
  3. Step 3: Cross multiply
    1,131,888.52x = 1,561,998.60 × 641,951.28
  4. Step 4: Simplify right side
    1,131,888.52x = 1,002,727,000,628.21
  5. Step 5: Solve for x
    x = 1,002,727,000,628.21/1,131,888.52
  6. Step 6: Final answer
    x = 885,888.48

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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.