Home / 1,247,741.75-1,721,888.80-674,781.92

Finding the Fourth Proportional to 1,247,741.75, 1,721,888.80 and 674,781.92

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Solution

The fourth proportional to 1,247,741.75, 1,721,888.80 and 674,781.92 is: 931,201.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,741.75 : 1,721,888.80 = 674,781.92 : x
  2. Step 2: Convert to fraction form
    1,247,741.75/1,721,888.80 = 674,781.92/x
  3. Step 3: Cross multiply
    1,247,741.75x = 1,721,888.80 × 674,781.92
  4. Step 4: Simplify right side
    1,247,741.75x = 1,161,899,426,651.18
  5. Step 5: Solve for x
    x = 1,161,899,426,651.18/1,247,741.75
  6. Step 6: Final answer
    x = 931,201.85

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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.