Home / 728,168.40-1,092,252.60-657,309.60

Finding the Fourth Proportional to 728,168.40, 1,092,252.60 and 657,309.60

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Solution

The fourth proportional to 728,168.40, 1,092,252.60 and 657,309.60 is: 985,964.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,168.40 : 1,092,252.60 = 657,309.60 : x
  2. Step 2: Convert to fraction form
    728,168.40/1,092,252.60 = 657,309.60/x
  3. Step 3: Cross multiply
    728,168.40x = 1,092,252.60 × 657,309.60
  4. Step 4: Simplify right side
    728,168.40x = 717,948,119,604.96
  5. Step 5: Solve for x
    x = 717,948,119,604.96/728,168.40
  6. Step 6: Final answer
    x = 985,964.40

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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.