Home / 2,428,728.20-3,644,129.10-1,165,905.80

Finding the Fourth Proportional to 2,428,728.20, 3,644,129.10 and 1,165,905.80

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Solution

The fourth proportional to 2,428,728.20, 3,644,129.10 and 1,165,905.80 is: 1,749,356.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,428,728.20 : 3,644,129.10 = 1,165,905.80 : x
  2. Step 2: Convert to fraction form
    2,428,728.20/3,644,129.10 = 1,165,905.80/x
  3. Step 3: Cross multiply
    2,428,728.20x = 3,644,129.10 × 1,165,905.80
  4. Step 4: Simplify right side
    2,428,728.20x = 4,248,711,253,638.78
  5. Step 5: Solve for x
    x = 4,248,711,253,638.78/2,428,728.20
  6. Step 6: Final answer
    x = 1,749,356.41

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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.