Home / 641,543.76-962,305.56-220,823.28

Finding the Fourth Proportional to 641,543.76, 962,305.56 and 220,823.28

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Solution

The fourth proportional to 641,543.76, 962,305.56 and 220,823.28 is: 331,231.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,543.76 : 962,305.56 = 220,823.28 : x
  2. Step 2: Convert to fraction form
    641,543.76/962,305.56 = 220,823.28/x
  3. Step 3: Cross multiply
    641,543.76x = 962,305.56 × 220,823.28
  4. Step 4: Simplify right side
    641,543.76x = 212,499,470,121.44
  5. Step 5: Solve for x
    x = 212,499,470,121.44/641,543.76
  6. Step 6: Final answer
    x = 331,231.45

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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.