Home / 728,598.15-1,092,899.26-279,456.69

Finding the Fourth Proportional to 728,598.15, 1,092,899.26 and 279,456.69

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Solution

The fourth proportional to 728,598.15, 1,092,899.26 and 279,456.69 is: 419,185.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,598.15 : 1,092,899.26 = 279,456.69 : x
  2. Step 2: Convert to fraction form
    728,598.15/1,092,899.26 = 279,456.69/x
  3. Step 3: Cross multiply
    728,598.15x = 1,092,899.26 × 279,456.69
  4. Step 4: Simplify right side
    728,598.15x = 305,418,011,736.66
  5. Step 5: Solve for x
    x = 305,418,011,736.66/728,598.15
  6. Step 6: Final answer
    x = 419,185.82

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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.