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Finding the Fourth Proportional to 481,759.80, 721,862.10 and 303,948.60

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Solution

The fourth proportional to 481,759.80, 721,862.10 and 303,948.60 is: 455,432.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,759.80 : 721,862.10 = 303,948.60 : x
  2. Step 2: Convert to fraction form
    481,759.80/721,862.10 = 303,948.60/x
  3. Step 3: Cross multiply
    481,759.80x = 721,862.10 × 303,948.60
  4. Step 4: Simplify right side
    481,759.80x = 219,408,974,688.06
  5. Step 5: Solve for x
    x = 219,408,974,688.06/481,759.80
  6. Step 6: Final answer
    x = 455,432.30

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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.