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Finding the Fourth Proportional to 1,102,801.20, 1,654,201.80 and 1,060,810.80

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Solution

The fourth proportional to 1,102,801.20, 1,654,201.80 and 1,060,810.80 is: 1,591,216.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,102,801.20 : 1,654,201.80 = 1,060,810.80 : x
  2. Step 2: Convert to fraction form
    1,102,801.20/1,654,201.80 = 1,060,810.80/x
  3. Step 3: Cross multiply
    1,102,801.20x = 1,654,201.80 × 1,060,810.80
  4. Step 4: Simplify right side
    1,102,801.20x = 1,754,795,134,819.44
  5. Step 5: Solve for x
    x = 1,754,795,134,819.44/1,102,801.20
  6. Step 6: Final answer
    x = 1,591,216.20

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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.