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Finding the Fourth Proportional to 454,775.92, 627,538.80 and 261,172.96

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Solution

The fourth proportional to 454,775.92, 627,538.80 and 261,172.96 is: 360,388.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,775.92 : 627,538.80 = 261,172.96 : x
  2. Step 2: Convert to fraction form
    454,775.92/627,538.80 = 261,172.96/x
  3. Step 3: Cross multiply
    454,775.92x = 627,538.80 × 261,172.96
  4. Step 4: Simplify right side
    454,775.92x = 163,896,165,910.85
  5. Step 5: Solve for x
    x = 163,896,165,910.85/454,775.92
  6. Step 6: Final answer
    x = 360,388.84

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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.