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Finding the Fourth Proportional to 527,195.80, 727,542.42 and 300,862.36

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Solution

The fourth proportional to 527,195.80, 727,542.42 and 300,862.36 is: 415,197.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,195.80 : 727,542.42 = 300,862.36 : x
  2. Step 2: Convert to fraction form
    527,195.80/727,542.42 = 300,862.36/x
  3. Step 3: Cross multiply
    527,195.80x = 727,542.42 × 300,862.36
  4. Step 4: Simplify right side
    527,195.80x = 218,890,129,481.31
  5. Step 5: Solve for x
    x = 218,890,129,481.31/527,195.80
  6. Step 6: Final answer
    x = 415,197.03

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1.5x scale

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.