Home / 1,091,781.80-1,635,676.86-791,518.76

Finding the Fourth Proportional to 1,091,781.80, 1,635,676.86 and 791,518.76

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Solution

The fourth proportional to 1,091,781.80, 1,635,676.86 and 791,518.76 is: 1,185,831.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,781.80 : 1,635,676.86 = 791,518.76 : x
  2. Step 2: Convert to fraction form
    1,091,781.80/1,635,676.86 = 791,518.76/x
  3. Step 3: Cross multiply
    1,091,781.80x = 1,635,676.86 × 791,518.76
  4. Step 4: Simplify right side
    1,091,781.80x = 1,294,668,919,987.89
  5. Step 5: Solve for x
    x = 1,294,668,919,987.89/1,091,781.80
  6. Step 6: Final answer
    x = 1,185,831.20

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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.