Home / 429,913.38-644,869.32-114,370.29

Finding the Fourth Proportional to 429,913.38, 644,869.32 and 114,370.29

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Solution

The fourth proportional to 429,913.38, 644,869.32 and 114,370.29 is: 171,555.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,913.38 : 644,869.32 = 114,370.29 : x
  2. Step 2: Convert to fraction form
    429,913.38/644,869.32 = 114,370.29/x
  3. Step 3: Cross multiply
    429,913.38x = 644,869.32 × 114,370.29
  4. Step 4: Simplify right side
    429,913.38x = 73,753,890,711.61
  5. Step 5: Solve for x
    x = 73,753,890,711.61/429,913.38
  6. Step 6: Final answer
    x = 171,555.23

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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.