Home / 815,998.32-1,126,103.04-448,468.79

Finding the Fourth Proportional to 815,998.32, 1,126,103.04 and 448,468.79

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Solution

The fourth proportional to 815,998.32, 1,126,103.04 and 448,468.79 is: 618,900.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,998.32 : 1,126,103.04 = 448,468.79 : x
  2. Step 2: Convert to fraction form
    815,998.32/1,126,103.04 = 448,468.79/x
  3. Step 3: Cross multiply
    815,998.32x = 1,126,103.04 × 448,468.79
  4. Step 4: Simplify right side
    815,998.32x = 505,022,062,133.61
  5. Step 5: Solve for x
    x = 505,022,062,133.61/815,998.32
  6. Step 6: Final answer
    x = 618,900.86

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.