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Finding the Fourth Proportional to 643,607.20, 965,119.20 and 244,115.20

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Solution

The fourth proportional to 643,607.20, 965,119.20 and 244,115.20 is: 366,062.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,607.20 : 965,119.20 = 244,115.20 : x
  2. Step 2: Convert to fraction form
    643,607.20/965,119.20 = 244,115.20/x
  3. Step 3: Cross multiply
    643,607.20x = 965,119.20 × 244,115.20
  4. Step 4: Simplify right side
    643,607.20x = 235,600,266,531.84
  5. Step 5: Solve for x
    x = 235,600,266,531.84/643,607.20
  6. Step 6: Final answer
    x = 366,062.20

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.