Home / 639,449.48-882,377.34-352,951.04

Finding the Fourth Proportional to 639,449.48, 882,377.34 and 352,951.04

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Solution

The fourth proportional to 639,449.48, 882,377.34 and 352,951.04 is: 487,037.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,449.48 : 882,377.34 = 352,951.04 : x
  2. Step 2: Convert to fraction form
    639,449.48/882,377.34 = 352,951.04/x
  3. Step 3: Cross multiply
    639,449.48x = 882,377.34 × 352,951.04
  4. Step 4: Simplify right side
    639,449.48x = 311,435,999,825.43
  5. Step 5: Solve for x
    x = 311,435,999,825.43/639,449.48
  6. Step 6: Final answer
    x = 487,037.69

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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.