Home / 1,091,780.80-1,635,675.36-791,517.76

Finding the Fourth Proportional to 1,091,780.80, 1,635,675.36 and 791,517.76

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Solution

The fourth proportional to 1,091,780.80, 1,635,675.36 and 791,517.76 is: 1,185,829.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,780.80 : 1,635,675.36 = 791,517.76 : x
  2. Step 2: Convert to fraction form
    1,091,780.80/1,635,675.36 = 791,517.76/x
  3. Step 3: Cross multiply
    1,091,780.80x = 1,635,675.36 × 791,517.76
  4. Step 4: Simplify right side
    1,091,780.80x = 1,294,666,097,034.39
  5. Step 5: Solve for x
    x = 1,294,666,097,034.39/1,091,780.80
  6. Step 6: Final answer
    x = 1,185,829.70

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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.