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Finding the Fourth Proportional to 454,975.72, 627,862.12 and 251,028.28

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Solution

The fourth proportional to 454,975.72, 627,862.12 and 251,028.28 is: 346,416.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,975.72 : 627,862.12 = 251,028.28 : x
  2. Step 2: Convert to fraction form
    454,975.72/627,862.12 = 251,028.28/x
  3. Step 3: Cross multiply
    454,975.72x = 627,862.12 × 251,028.28
  4. Step 4: Simplify right side
    454,975.72x = 157,611,148,060.75
  5. Step 5: Solve for x
    x = 157,611,148,060.75/454,975.72
  6. Step 6: Final answer
    x = 346,416.61

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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.