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Finding the Fourth Proportional to 575,059.80, 862,589.88 and 259,147.56

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Solution

The fourth proportional to 575,059.80, 862,589.88 and 259,147.56 is: 388,721.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,059.80 : 862,589.88 = 259,147.56 : x
  2. Step 2: Convert to fraction form
    575,059.80/862,589.88 = 259,147.56/x
  3. Step 3: Cross multiply
    575,059.80x = 862,589.88 × 259,147.56
  4. Step 4: Simplify right side
    575,059.80x = 223,538,062,682.69
  5. Step 5: Solve for x
    x = 223,538,062,682.69/575,059.80
  6. Step 6: Final answer
    x = 388,721.42

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Similar ratio
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1.5x scale

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.