Home / 819,204.30-1,228,806.45-228,228.30

Finding the Fourth Proportional to 819,204.30, 1,228,806.45 and 228,228.30

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Solution

The fourth proportional to 819,204.30, 1,228,806.45 and 228,228.30 is: 342,342.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,204.30 : 1,228,806.45 = 228,228.30 : x
  2. Step 2: Convert to fraction form
    819,204.30/1,228,806.45 = 228,228.30/x
  3. Step 3: Cross multiply
    819,204.30x = 1,228,806.45 × 228,228.30
  4. Step 4: Simplify right side
    819,204.30x = 280,448,407,112.54
  5. Step 5: Solve for x
    x = 280,448,407,112.54/819,204.30
  6. Step 6: Final answer
    x = 342,342.45

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Double scale
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Similar ratio
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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.