Home / 782,405.60-1,173,608.40-221,440.10

Finding the Fourth Proportional to 782,405.60, 1,173,608.40 and 221,440.10

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Solution

The fourth proportional to 782,405.60, 1,173,608.40 and 221,440.10 is: 332,160.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,405.60 : 1,173,608.40 = 221,440.10 : x
  2. Step 2: Convert to fraction form
    782,405.60/1,173,608.40 = 221,440.10/x
  3. Step 3: Cross multiply
    782,405.60x = 1,173,608.40 × 221,440.10
  4. Step 4: Simplify right side
    782,405.60x = 259,883,961,456.84
  5. Step 5: Solve for x
    x = 259,883,961,456.84/782,405.60
  6. Step 6: Final answer
    x = 332,160.15

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Similar ratio
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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.