Home / 1,217,542.20-1,826,313.30-318,982.20

Finding the Fourth Proportional to 1,217,542.20, 1,826,313.30 and 318,982.20

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Solution

The fourth proportional to 1,217,542.20, 1,826,313.30 and 318,982.20 is: 478,473.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,542.20 : 1,826,313.30 = 318,982.20 : x
  2. Step 2: Convert to fraction form
    1,217,542.20/1,826,313.30 = 318,982.20/x
  3. Step 3: Cross multiply
    1,217,542.20x = 1,826,313.30 × 318,982.20
  4. Step 4: Simplify right side
    1,217,542.20x = 582,561,434,323.26
  5. Step 5: Solve for x
    x = 582,561,434,323.26/1,217,542.20
  6. Step 6: Final answer
    x = 478,473.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.