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Finding the Fourth Proportional to 454,683.78, 627,449.20 and 250,743.28

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Solution

The fourth proportional to 454,683.78, 627,449.20 and 250,743.28 is: 346,017.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,683.78 : 627,449.20 = 250,743.28 : x
  2. Step 2: Convert to fraction form
    454,683.78/627,449.20 = 250,743.28/x
  3. Step 3: Cross multiply
    454,683.78x = 627,449.20 × 250,743.28
  4. Step 4: Simplify right side
    454,683.78x = 157,328,670,441.38
  5. Step 5: Solve for x
    x = 157,328,670,441.38/454,683.78
  6. Step 6: Final answer
    x = 346,017.78

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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.