Home / 1,127,189.76-1,691,517.40-488,117.56

Finding the Fourth Proportional to 1,127,189.76, 1,691,517.40 and 488,117.56

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Solution

The fourth proportional to 1,127,189.76, 1,691,517.40 and 488,117.56 is: 732,493.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,127,189.76 : 1,691,517.40 = 488,117.56 : x
  2. Step 2: Convert to fraction form
    1,127,189.76/1,691,517.40 = 488,117.56/x
  3. Step 3: Cross multiply
    1,127,189.76x = 1,691,517.40 × 488,117.56
  4. Step 4: Simplify right side
    1,127,189.76x = 825,659,345,985.54
  5. Step 5: Solve for x
    x = 825,659,345,985.54/1,127,189.76
  6. Step 6: Final answer
    x = 732,493.65

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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.