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Finding the Fourth Proportional to 412,521.66, 568,215.07 and 291,452.78

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Solution

The fourth proportional to 412,521.66, 568,215.07 and 291,452.78 is: 401,452.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,521.66 : 568,215.07 = 291,452.78 : x
  2. Step 2: Convert to fraction form
    412,521.66/568,215.07 = 291,452.78/x
  3. Step 3: Cross multiply
    412,521.66x = 568,215.07 × 291,452.78
  4. Step 4: Simplify right side
    412,521.66x = 165,607,862,481.30
  5. Step 5: Solve for x
    x = 165,607,862,481.30/412,521.66
  6. Step 6: Final answer
    x = 401,452.53

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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.