Home / 811,399.82-1,119,645.60-448,766.06

Finding the Fourth Proportional to 811,399.82, 1,119,645.60 and 448,766.06

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Solution

The fourth proportional to 811,399.82, 1,119,645.60 and 448,766.06 is: 619,249.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,399.82 : 1,119,645.60 = 448,766.06 : x
  2. Step 2: Convert to fraction form
    811,399.82/1,119,645.60 = 448,766.06/x
  3. Step 3: Cross multiply
    811,399.82x = 1,119,645.60 × 448,766.06
  4. Step 4: Simplify right side
    811,399.82x = 502,458,944,508.34
  5. Step 5: Solve for x
    x = 502,458,944,508.34/811,399.82
  6. Step 6: Final answer
    x = 619,249.51

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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.