Home / 451,626.80-677,554.10-318,766.55

Finding the Fourth Proportional to 451,626.80, 677,554.10 and 318,766.55

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Solution

The fourth proportional to 451,626.80, 677,554.10 and 318,766.55 is: 478,230.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,626.80 : 677,554.10 = 318,766.55 : x
  2. Step 2: Convert to fraction form
    451,626.80/677,554.10 = 318,766.55/x
  3. Step 3: Cross multiply
    451,626.80x = 677,554.10 × 318,766.55
  4. Step 4: Simplify right side
    451,626.80x = 215,981,579,109.13
  5. Step 5: Solve for x
    x = 215,981,579,109.13/451,626.80
  6. Step 6: Final answer
    x = 478,230.21

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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.