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Finding the Fourth Proportional to 568,508.78, 784,452.74 and 326,744.66

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Solution

The fourth proportional to 568,508.78, 784,452.74 and 326,744.66 is: 450,856.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,508.78 : 784,452.74 = 326,744.66 : x
  2. Step 2: Convert to fraction form
    568,508.78/784,452.74 = 326,744.66/x
  3. Step 3: Cross multiply
    568,508.78x = 784,452.74 × 326,744.66
  4. Step 4: Simplify right side
    568,508.78x = 256,315,744,144.78
  5. Step 5: Solve for x
    x = 256,315,744,144.78/568,508.78
  6. Step 6: Final answer
    x = 450,856.26

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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.