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Finding the Fourth Proportional to 520,452.63, 780,679.22 and 146,475.63

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Solution

The fourth proportional to 520,452.63, 780,679.22 and 146,475.63 is: 219,713.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,452.63 : 780,679.22 = 146,475.63 : x
  2. Step 2: Convert to fraction form
    520,452.63/780,679.22 = 146,475.63/x
  3. Step 3: Cross multiply
    520,452.63x = 780,679.22 × 146,475.63
  4. Step 4: Simplify right side
    520,452.63x = 114,350,479,845.03
  5. Step 5: Solve for x
    x = 114,350,479,845.03/520,452.63
  6. Step 6: Final answer
    x = 219,713.52

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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.