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Finding the Fourth Proportional to 422,320.28, 632,599.02 and 253,304.60

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Solution

The fourth proportional to 422,320.28, 632,599.02 and 253,304.60 is: 379,428.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,320.28 : 632,599.02 = 253,304.60 : x
  2. Step 2: Convert to fraction form
    422,320.28/632,599.02 = 253,304.60/x
  3. Step 3: Cross multiply
    422,320.28x = 632,599.02 × 253,304.60
  4. Step 4: Simplify right side
    422,320.28x = 160,240,241,721.49
  5. Step 5: Solve for x
    x = 160,240,241,721.49/422,320.28
  6. Step 6: Final answer
    x = 379,428.24

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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.