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Finding the Fourth Proportional to 555,116.42, 766,067.02 and 325,677.78

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Solution

The fourth proportional to 555,116.42, 766,067.02 and 325,677.78 is: 449,439.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,116.42 : 766,067.02 = 325,677.78 : x
  2. Step 2: Convert to fraction form
    555,116.42/766,067.02 = 325,677.78/x
  3. Step 3: Cross multiply
    555,116.42x = 766,067.02 × 325,677.78
  4. Step 4: Simplify right side
    555,116.42x = 249,491,005,590.62
  5. Step 5: Solve for x
    x = 249,491,005,590.62/555,116.42
  6. Step 6: Final answer
    x = 449,439.06

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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.