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Finding the Fourth Proportional to 322,672.80, 484,009.20 and 310,425.60

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Solution

The fourth proportional to 322,672.80, 484,009.20 and 310,425.60 is: 465,638.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,672.80 : 484,009.20 = 310,425.60 : x
  2. Step 2: Convert to fraction form
    322,672.80/484,009.20 = 310,425.60/x
  3. Step 3: Cross multiply
    322,672.80x = 484,009.20 × 310,425.60
  4. Step 4: Simplify right side
    322,672.80x = 150,248,846,315.52
  5. Step 5: Solve for x
    x = 150,248,846,315.52/322,672.80
  6. Step 6: Final answer
    x = 465,638.40

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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.