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Finding the Fourth Proportional to 819,246, 1,229,076.36 and 228,270

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Solution

The fourth proportional to 819,246, 1,229,076.36 and 228,270 is: 342,462.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,246 : 1,229,076.36 = 228,270 : x
  2. Step 2: Convert to fraction form
    819,246/1,229,076.36 = 228,270/x
  3. Step 3: Cross multiply
    819,246x = 1,229,076.36 × 228,270
  4. Step 4: Simplify right side
    819,246x = 280,561,260,697.20
  5. Step 5: Solve for x
    x = 280,561,260,697.20/819,246
  6. Step 6: Final answer
    x = 342,462.78

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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.