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Finding the Fourth Proportional to 454,420.74, 627,128.01 and 250,471.38

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Solution

The fourth proportional to 454,420.74, 627,128.01 and 250,471.38 is: 345,665.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,420.74 : 627,128.01 = 250,471.38 : x
  2. Step 2: Convert to fraction form
    454,420.74/627,128.01 = 250,471.38/x
  3. Step 3: Cross multiply
    454,420.74x = 627,128.01 × 250,471.38
  4. Step 4: Simplify right side
    454,420.74x = 157,077,618,101.35
  5. Step 5: Solve for x
    x = 157,077,618,101.35/454,420.74
  6. Step 6: Final answer
    x = 345,665.60

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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.