Home / 1,443,286.78-1,991,739.64-798,751.42

Finding the Fourth Proportional to 1,443,286.78, 1,991,739.64 and 798,751.42

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Solution

The fourth proportional to 1,443,286.78, 1,991,739.64 and 798,751.42 is: 1,102,279.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,443,286.78 : 1,991,739.64 = 798,751.42 : x
  2. Step 2: Convert to fraction form
    1,443,286.78/1,991,739.64 = 798,751.42/x
  3. Step 3: Cross multiply
    1,443,286.78x = 1,991,739.64 × 798,751.42
  4. Step 4: Simplify right side
    1,443,286.78x = 1,590,904,865,720.29
  5. Step 5: Solve for x
    x = 1,590,904,865,720.29/1,443,286.78
  6. Step 6: Final answer
    x = 1,102,279.11

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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.