Home / 681,195.57-1,019,966.01-380,820.66

Finding the Fourth Proportional to 681,195.57, 1,019,966.01 and 380,820.66

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Solution

The fourth proportional to 681,195.57, 1,019,966.01 and 380,820.66 is: 570,209.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,195.57 : 1,019,966.01 = 380,820.66 : x
  2. Step 2: Convert to fraction form
    681,195.57/1,019,966.01 = 380,820.66/x
  3. Step 3: Cross multiply
    681,195.57x = 1,019,966.01 × 380,820.66
  4. Step 4: Simplify right side
    681,195.57x = 388,424,129,105.77
  5. Step 5: Solve for x
    x = 388,424,129,105.77/681,195.57
  6. Step 6: Final answer
    x = 570,209.42

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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.