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Finding the Fourth Proportional to 425,843.04, 587,704.92 and 318,226.20

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Solution

The fourth proportional to 425,843.04, 587,704.92 and 318,226.20 is: 439,183.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,843.04 : 587,704.92 = 318,226.20 : x
  2. Step 2: Convert to fraction form
    425,843.04/587,704.92 = 318,226.20/x
  3. Step 3: Cross multiply
    425,843.04x = 587,704.92 × 318,226.20
  4. Step 4: Simplify right side
    425,843.04x = 187,023,103,412.90
  5. Step 5: Solve for x
    x = 187,023,103,412.90/425,843.04
  6. Step 6: Final answer
    x = 439,183.19

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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.