Home / 728,118.97-1,092,670.31-254,808.43

Finding the Fourth Proportional to 728,118.97, 1,092,670.31 and 254,808.43

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Solution

The fourth proportional to 728,118.97, 1,092,670.31 and 254,808.43 is: 382,384.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,118.97 : 1,092,670.31 = 254,808.43 : x
  2. Step 2: Convert to fraction form
    728,118.97/1,092,670.31 = 254,808.43/x
  3. Step 3: Cross multiply
    728,118.97x = 1,092,670.31 × 254,808.43
  4. Step 4: Simplify right side
    728,118.97x = 278,421,606,198.71
  5. Step 5: Solve for x
    x = 278,421,606,198.71/728,118.97
  6. Step 6: Final answer
    x = 382,384.77

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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.