Home / 1,443,321.40-1,991,734.38-798,768.76

Finding the Fourth Proportional to 1,443,321.40, 1,991,734.38 and 798,768.76

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Solution

The fourth proportional to 1,443,321.40, 1,991,734.38 and 798,768.76 is: 1,102,273.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,443,321.40 : 1,991,734.38 = 798,768.76 : x
  2. Step 2: Convert to fraction form
    1,443,321.40/1,991,734.38 = 798,768.76/x
  3. Step 3: Cross multiply
    1,443,321.40x = 1,991,734.38 × 798,768.76
  4. Step 4: Simplify right side
    1,443,321.40x = 1,590,935,200,961.97
  5. Step 5: Solve for x
    x = 1,590,935,200,961.97/1,443,321.40
  6. Step 6: Final answer
    x = 1,102,273.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.