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Finding the Fourth Proportional to 454,421.28, 627,114 and 260,845.68

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Solution

The fourth proportional to 454,421.28, 627,114 and 260,845.68 is: 359,974.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,421.28 : 627,114 = 260,845.68 : x
  2. Step 2: Convert to fraction form
    454,421.28/627,114 = 260,845.68/x
  3. Step 3: Cross multiply
    454,421.28x = 627,114 × 260,845.68
  4. Step 4: Simplify right side
    454,421.28x = 163,579,977,767.52
  5. Step 5: Solve for x
    x = 163,579,977,767.52/454,421.28
  6. Step 6: Final answer
    x = 359,974.29

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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.