Home / 815,700.88-1,125,635.92-453,147.54

Finding the Fourth Proportional to 815,700.88, 1,125,635.92 and 453,147.54

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Solution

The fourth proportional to 815,700.88, 1,125,635.92 and 453,147.54 is: 625,326.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,700.88 : 1,125,635.92 = 453,147.54 : x
  2. Step 2: Convert to fraction form
    815,700.88/1,125,635.92 = 453,147.54/x
  3. Step 3: Cross multiply
    815,700.88x = 1,125,635.92 × 453,147.54
  4. Step 4: Simplify right side
    815,700.88x = 510,079,148,083.64
  5. Step 5: Solve for x
    x = 510,079,148,083.64/815,700.88
  6. Step 6: Final answer
    x = 625,326.22

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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.