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Finding the Fourth Proportional to 454,400, 627,045.92 and 260,766.72

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Solution

The fourth proportional to 454,400, 627,045.92 and 260,766.72 is: 359,843.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,400 : 627,045.92 = 260,766.72 : x
  2. Step 2: Convert to fraction form
    454,400/627,045.92 = 260,766.72/x
  3. Step 3: Cross multiply
    454,400x = 627,045.92 × 260,766.72
  4. Step 4: Simplify right side
    454,400x = 163,512,707,847.78
  5. Step 5: Solve for x
    x = 163,512,707,847.78/454,400
  6. Step 6: Final answer
    x = 359,843.11

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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.