Home / 728,117.88-1,092,668.85-254,807.34

Finding the Fourth Proportional to 728,117.88, 1,092,668.85 and 254,807.34

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Solution

The fourth proportional to 728,117.88, 1,092,668.85 and 254,807.34 is: 382,383.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,117.88 : 1,092,668.85 = 254,807.34 : x
  2. Step 2: Convert to fraction form
    728,117.88/1,092,668.85 = 254,807.34/x
  3. Step 3: Cross multiply
    728,117.88x = 1,092,668.85 × 254,807.34
  4. Step 4: Simplify right side
    728,117.88x = 278,420,043,169.36
  5. Step 5: Solve for x
    x = 278,420,043,169.36/728,117.88
  6. Step 6: Final answer
    x = 382,383.20

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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.