Home / 1,321,323.38-1,823,339.83-777,354.11

Finding the Fourth Proportional to 1,321,323.38, 1,823,339.83 and 777,354.11

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Solution

The fourth proportional to 1,321,323.38, 1,823,339.83 and 777,354.11 is: 1,072,697.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,323.38 : 1,823,339.83 = 777,354.11 : x
  2. Step 2: Convert to fraction form
    1,321,323.38/1,823,339.83 = 777,354.11/x
  3. Step 3: Cross multiply
    1,321,323.38x = 1,823,339.83 × 777,354.11
  4. Step 4: Simplify right side
    1,321,323.38x = 1,417,380,719,361.66
  5. Step 5: Solve for x
    x = 1,417,380,719,361.66/1,321,323.38
  6. Step 6: Final answer
    x = 1,072,697.83

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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.