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Finding the Fourth Proportional to 526,475.55, 789,713.35 and 171,489.56

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Solution

The fourth proportional to 526,475.55, 789,713.35 and 171,489.56 is: 257,234.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,475.55 : 789,713.35 = 171,489.56 : x
  2. Step 2: Convert to fraction form
    526,475.55/789,713.35 = 171,489.56/x
  3. Step 3: Cross multiply
    526,475.55x = 789,713.35 × 171,489.56
  4. Step 4: Simplify right side
    526,475.55x = 135,427,590,540.34
  5. Step 5: Solve for x
    x = 135,427,590,540.34/526,475.55
  6. Step 6: Final answer
    x = 257,234.34

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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.