Home / 728,621.70-1,092,932.55-229,985.70

Finding the Fourth Proportional to 728,621.70, 1,092,932.55 and 229,985.70

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Solution

The fourth proportional to 728,621.70, 1,092,932.55 and 229,985.70 is: 344,978.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,621.70 : 1,092,932.55 = 229,985.70 : x
  2. Step 2: Convert to fraction form
    728,621.70/1,092,932.55 = 229,985.70/x
  3. Step 3: Cross multiply
    728,621.70x = 1,092,932.55 × 229,985.70
  4. Step 4: Simplify right side
    728,621.70x = 251,358,857,564.54
  5. Step 5: Solve for x
    x = 251,358,857,564.54/728,621.70
  6. Step 6: Final answer
    x = 344,978.55

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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.