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Finding the Fourth Proportional to 639,694.44, 960,122.04 and 340,426.98

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Solution

The fourth proportional to 639,694.44, 960,122.04 and 340,426.98 is: 510,949.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,694.44 : 960,122.04 = 340,426.98 : x
  2. Step 2: Convert to fraction form
    639,694.44/960,122.04 = 340,426.98/x
  3. Step 3: Cross multiply
    639,694.44x = 960,122.04 × 340,426.98
  4. Step 4: Simplify right side
    639,694.44x = 326,851,446,508.64
  5. Step 5: Solve for x
    x = 326,851,446,508.64/639,694.44
  6. Step 6: Final answer
    x = 510,949.33

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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.