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Finding the Fourth Proportional to 324,785.78, 487,012.30 and 173,069.34

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Solution

The fourth proportional to 324,785.78, 487,012.30 and 173,069.34 is: 259,515.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,785.78 : 487,012.30 = 173,069.34 : x
  2. Step 2: Convert to fraction form
    324,785.78/487,012.30 = 173,069.34/x
  3. Step 3: Cross multiply
    324,785.78x = 487,012.30 × 173,069.34
  4. Step 4: Simplify right side
    324,785.78x = 84,286,895,073.91
  5. Step 5: Solve for x
    x = 84,286,895,073.91/324,785.78
  6. Step 6: Final answer
    x = 259,515.35

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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.