Home / 811,504.92-1,119,909.78-448,922.52

Finding the Fourth Proportional to 811,504.92, 1,119,909.78 and 448,922.52

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Solution

The fourth proportional to 811,504.92, 1,119,909.78 and 448,922.52 is: 619,531.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,504.92 : 1,119,909.78 = 448,922.52 : x
  2. Step 2: Convert to fraction form
    811,504.92/1,119,909.78 = 448,922.52/x
  3. Step 3: Cross multiply
    811,504.92x = 1,119,909.78 × 448,922.52
  4. Step 4: Simplify right side
    811,504.92x = 502,752,720,610.25
  5. Step 5: Solve for x
    x = 502,752,720,610.25/811,504.92
  6. Step 6: Final answer
    x = 619,531.33

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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.