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Finding the Fourth Proportional to 609,305.80, 914,116.38 and 356,799.64

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Solution

The fourth proportional to 609,305.80, 914,116.38 and 356,799.64 is: 535,291.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,305.80 : 914,116.38 = 356,799.64 : x
  2. Step 2: Convert to fraction form
    609,305.80/914,116.38 = 356,799.64/x
  3. Step 3: Cross multiply
    609,305.80x = 914,116.38 × 356,799.64
  4. Step 4: Simplify right side
    609,305.80x = 326,156,395,302.10
  5. Step 5: Solve for x
    x = 326,156,395,302.10/609,305.80
  6. Step 6: Final answer
    x = 535,291.79

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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.