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Finding the Fourth Proportional to 481,966.30, 722,949.45 and 369,991.90

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Solution

The fourth proportional to 481,966.30, 722,949.45 and 369,991.90 is: 554,987.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,966.30 : 722,949.45 = 369,991.90 : x
  2. Step 2: Convert to fraction form
    481,966.30/722,949.45 = 369,991.90/x
  3. Step 3: Cross multiply
    481,966.30x = 722,949.45 × 369,991.90
  4. Step 4: Simplify right side
    481,966.30x = 267,485,440,609.46
  5. Step 5: Solve for x
    x = 267,485,440,609.46/481,966.30
  6. Step 6: Final answer
    x = 554,987.85

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Similar ratio
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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.