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Finding the Fourth Proportional to 627,201.20, 940,888.20 and 272,205.20

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Solution

The fourth proportional to 627,201.20, 940,888.20 and 272,205.20 is: 408,345.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,201.20 : 940,888.20 = 272,205.20 : x
  2. Step 2: Convert to fraction form
    627,201.20/940,888.20 = 272,205.20/x
  3. Step 3: Cross multiply
    627,201.20x = 940,888.20 × 272,205.20
  4. Step 4: Simplify right side
    627,201.20x = 256,114,660,658.64
  5. Step 5: Solve for x
    x = 256,114,660,658.64/627,201.20
  6. Step 6: Final answer
    x = 408,345.30

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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.