Home / 728,109.74-1,092,656.66-254,799.20

Finding the Fourth Proportional to 728,109.74, 1,092,656.66 and 254,799.20

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Solution

The fourth proportional to 728,109.74, 1,092,656.66 and 254,799.20 is: 382,370.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,109.74 : 1,092,656.66 = 254,799.20 : x
  2. Step 2: Convert to fraction form
    728,109.74/1,092,656.66 = 254,799.20/x
  3. Step 3: Cross multiply
    728,109.74x = 1,092,656.66 × 254,799.20
  4. Step 4: Simplify right side
    728,109.74x = 278,408,044,300.32
  5. Step 5: Solve for x
    x = 278,408,044,300.32/728,109.74
  6. Step 6: Final answer
    x = 382,370.99

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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.