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Finding the Fourth Proportional to 559,419.45, 838,761.54 and 271,154.80

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Solution

The fourth proportional to 559,419.45, 838,761.54 and 271,154.80 is: 406,554.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,419.45 : 838,761.54 = 271,154.80 : x
  2. Step 2: Convert to fraction form
    559,419.45/838,761.54 = 271,154.80/x
  3. Step 3: Cross multiply
    559,419.45x = 838,761.54 × 271,154.80
  4. Step 4: Simplify right side
    559,419.45x = 227,434,215,436.29
  5. Step 5: Solve for x
    x = 227,434,215,436.29/559,419.45
  6. Step 6: Final answer
    x = 406,554.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.