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Finding the Fourth Proportional to 2,652,000.20, 3,978,000.30 and 1,644,230.60

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Solution

The fourth proportional to 2,652,000.20, 3,978,000.30 and 1,644,230.60 is: 2,466,345.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,652,000.20 : 3,978,000.30 = 1,644,230.60 : x
  2. Step 2: Convert to fraction form
    2,652,000.20/3,978,000.30 = 1,644,230.60/x
  3. Step 3: Cross multiply
    2,652,000.20x = 3,978,000.30 × 1,644,230.60
  4. Step 4: Simplify right side
    2,652,000.20x = 6,540,749,820,069.18
  5. Step 5: Solve for x
    x = 6,540,749,820,069.18/2,652,000.20
  6. Step 6: Final answer
    x = 2,466,345.90

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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.