Home / 429,799.50-644,447.52-163,579.68

Finding the Fourth Proportional to 429,799.50, 644,447.52 and 163,579.68

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Solution

The fourth proportional to 429,799.50, 644,447.52 and 163,579.68 is: 245,273.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,799.50 : 644,447.52 = 163,579.68 : x
  2. Step 2: Convert to fraction form
    429,799.50/644,447.52 = 163,579.68/x
  3. Step 3: Cross multiply
    429,799.50x = 644,447.52 × 163,579.68
  4. Step 4: Simplify right side
    429,799.50x = 105,418,519,098.39
  5. Step 5: Solve for x
    x = 105,418,519,098.39/429,799.50
  6. Step 6: Final answer
    x = 245,273.71

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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.