Home / 418,490.78-576,975.20-271,053.32

Finding the Fourth Proportional to 418,490.78, 576,975.20 and 271,053.32

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Solution

The fourth proportional to 418,490.78, 576,975.20 and 271,053.32 is: 373,702.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,490.78 : 576,975.20 = 271,053.32 : x
  2. Step 2: Convert to fraction form
    418,490.78/576,975.20 = 271,053.32/x
  3. Step 3: Cross multiply
    418,490.78x = 576,975.20 × 271,053.32
  4. Step 4: Simplify right side
    418,490.78x = 156,391,043,517.66
  5. Step 5: Solve for x
    x = 156,391,043,517.66/418,490.78
  6. Step 6: Final answer
    x = 373,702.48

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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.