Home / 728,773.12-1,005,708.27-406,504.09

Finding the Fourth Proportional to 728,773.12, 1,005,708.27 and 406,504.09

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Solution

The fourth proportional to 728,773.12, 1,005,708.27 and 406,504.09 is: 560,976.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,773.12 : 1,005,708.27 = 406,504.09 : x
  2. Step 2: Convert to fraction form
    728,773.12/1,005,708.27 = 406,504.09/x
  3. Step 3: Cross multiply
    728,773.12x = 1,005,708.27 × 406,504.09
  4. Step 4: Simplify right side
    728,773.12x = 408,824,525,101.82
  5. Step 5: Solve for x
    x = 408,824,525,101.82/728,773.12
  6. Step 6: Final answer
    x = 560,976.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.