Home / 728,270.40-1,092,405.60-723,604.80

Finding the Fourth Proportional to 728,270.40, 1,092,405.60 and 723,604.80

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Solution

The fourth proportional to 728,270.40, 1,092,405.60 and 723,604.80 is: 1,085,407.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,270.40 : 1,092,405.60 = 723,604.80 : x
  2. Step 2: Convert to fraction form
    728,270.40/1,092,405.60 = 723,604.80/x
  3. Step 3: Cross multiply
    728,270.40x = 1,092,405.60 × 723,604.80
  4. Step 4: Simplify right side
    728,270.40x = 790,469,935,706.88
  5. Step 5: Solve for x
    x = 790,469,935,706.88/728,270.40
  6. Step 6: Final answer
    x = 1,085,407.20

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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.