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Finding the Fourth Proportional to 454,372.70, 627,008.74 and 250,423

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Solution

The fourth proportional to 454,372.70, 627,008.74 and 250,423 is: 345,569.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,372.70 : 627,008.74 = 250,423 : x
  2. Step 2: Convert to fraction form
    454,372.70/627,008.74 = 250,423/x
  3. Step 3: Cross multiply
    454,372.70x = 627,008.74 × 250,423
  4. Step 4: Simplify right side
    454,372.70x = 157,017,409,697.02
  5. Step 5: Solve for x
    x = 157,017,409,697.02/454,372.70
  6. Step 6: Final answer
    x = 345,569.64

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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.