Home / 728,786.88-1,092,830.40-413,159.04

Finding the Fourth Proportional to 728,786.88, 1,092,830.40 and 413,159.04

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Solution

The fourth proportional to 728,786.88, 1,092,830.40 and 413,159.04 is: 619,540.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,786.88 : 1,092,830.40 = 413,159.04 : x
  2. Step 2: Convert to fraction form
    728,786.88/1,092,830.40 = 413,159.04/x
  3. Step 3: Cross multiply
    728,786.88x = 1,092,830.40 × 413,159.04
  4. Step 4: Simplify right side
    728,786.88x = 451,512,758,946.82
  5. Step 5: Solve for x
    x = 451,512,758,946.82/728,786.88
  6. Step 6: Final answer
    x = 619,540.19

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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.