Home / 1,243,387.32-1,715,871.84-699,523.48

Finding the Fourth Proportional to 1,243,387.32, 1,715,871.84 and 699,523.48

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Solution

The fourth proportional to 1,243,387.32, 1,715,871.84 and 699,523.48 is: 965,340.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,387.32 : 1,715,871.84 = 699,523.48 : x
  2. Step 2: Convert to fraction form
    1,243,387.32/1,715,871.84 = 699,523.48/x
  3. Step 3: Cross multiply
    1,243,387.32x = 1,715,871.84 × 699,523.48
  4. Step 4: Simplify right side
    1,243,387.32x = 1,200,292,640,750.80
  5. Step 5: Solve for x
    x = 1,200,292,640,750.80/1,243,387.32
  6. Step 6: Final answer
    x = 965,340.90

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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.