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Finding the Fourth Proportional to 322,801.20, 444,835.80 and 318,864.60

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Solution

The fourth proportional to 322,801.20, 444,835.80 and 318,864.60 is: 439,410.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,801.20 : 444,835.80 = 318,864.60 : x
  2. Step 2: Convert to fraction form
    322,801.20/444,835.80 = 318,864.60/x
  3. Step 3: Cross multiply
    322,801.20x = 444,835.80 × 318,864.60
  4. Step 4: Simplify right side
    322,801.20x = 141,842,389,432.68
  5. Step 5: Solve for x
    x = 141,842,389,432.68/322,801.20
  6. Step 6: Final answer
    x = 439,410.97

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1.5x scale

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.