Home / 728,115.22-1,092,664.68-254,804.68

Finding the Fourth Proportional to 728,115.22, 1,092,664.68 and 254,804.68

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Solution

The fourth proportional to 728,115.22, 1,092,664.68 and 254,804.68 is: 382,379.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,115.22 : 1,092,664.68 = 254,804.68 : x
  2. Step 2: Convert to fraction form
    728,115.22/1,092,664.68 = 254,804.68/x
  3. Step 3: Cross multiply
    728,115.22x = 1,092,664.68 × 254,804.68
  4. Step 4: Simplify right side
    728,115.22x = 278,416,074,134.70
  5. Step 5: Solve for x
    x = 278,416,074,134.70/728,115.22
  6. Step 6: Final answer
    x = 382,379.14

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1.5x scale

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.