Home / 1,320,246.92-1,821,807.78-747,187.31

Finding the Fourth Proportional to 1,320,246.92, 1,821,807.78 and 747,187.31

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Solution

The fourth proportional to 1,320,246.92, 1,821,807.78 and 747,187.31 is: 1,031,043.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,246.92 : 1,821,807.78 = 747,187.31 : x
  2. Step 2: Convert to fraction form
    1,320,246.92/1,821,807.78 = 747,187.31/x
  3. Step 3: Cross multiply
    1,320,246.92x = 1,821,807.78 × 747,187.31
  4. Step 4: Simplify right side
    1,320,246.92x = 1,361,231,654,475.27
  5. Step 5: Solve for x
    x = 1,361,231,654,475.27/1,320,246.92
  6. Step 6: Final answer
    x = 1,031,043.23

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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.