Home / 728,168.40-1,092,738.51-254,853.81

Finding the Fourth Proportional to 728,168.40, 1,092,738.51 and 254,853.81

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Solution

The fourth proportional to 728,168.40, 1,092,738.51 and 254,853.81 is: 382,450.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,168.40 : 1,092,738.51 = 254,853.81 : x
  2. Step 2: Convert to fraction form
    728,168.40/1,092,738.51 = 254,853.81/x
  3. Step 3: Cross multiply
    728,168.40x = 1,092,738.51 × 254,853.81
  4. Step 4: Simplify right side
    728,168.40x = 278,488,572,607.22
  5. Step 5: Solve for x
    x = 278,488,572,607.22/728,168.40
  6. Step 6: Final answer
    x = 382,450.78

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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.