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Finding the Fourth Proportional to 324,254.97, 485,385.89 and 276,425.28

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Solution

The fourth proportional to 324,254.97, 485,385.89 and 276,425.28 is: 413,788.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,254.97 : 485,385.89 = 276,425.28 : x
  2. Step 2: Convert to fraction form
    324,254.97/485,385.89 = 276,425.28/x
  3. Step 3: Cross multiply
    324,254.97x = 485,385.89 × 276,425.28
  4. Step 4: Simplify right side
    324,254.97x = 134,172,929,169.17
  5. Step 5: Solve for x
    x = 134,172,929,169.17/324,254.97
  6. Step 6: Final answer
    x = 413,788.35

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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.