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Finding the Fourth Proportional to 489,331.66, 675,276.31 and 271,573.21

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Solution

The fourth proportional to 489,331.66, 675,276.31 and 271,573.21 is: 374,770.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,331.66 : 675,276.31 = 271,573.21 : x
  2. Step 2: Convert to fraction form
    489,331.66/675,276.31 = 271,573.21/x
  3. Step 3: Cross multiply
    489,331.66x = 675,276.31 × 271,573.21
  4. Step 4: Simplify right side
    489,331.66x = 183,386,952,776.53
  5. Step 5: Solve for x
    x = 183,386,952,776.53/489,331.66
  6. Step 6: Final answer
    x = 374,770.26

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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.