Home / 1,145,542.40-1,718,313.60-809,619.20

Finding the Fourth Proportional to 1,145,542.40, 1,718,313.60 and 809,619.20

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Solution

The fourth proportional to 1,145,542.40, 1,718,313.60 and 809,619.20 is: 1,214,428.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,145,542.40 : 1,718,313.60 = 809,619.20 : x
  2. Step 2: Convert to fraction form
    1,145,542.40/1,718,313.60 = 809,619.20/x
  3. Step 3: Cross multiply
    1,145,542.40x = 1,718,313.60 × 809,619.20
  4. Step 4: Simplify right side
    1,145,542.40x = 1,391,179,682,181.12
  5. Step 5: Solve for x
    x = 1,391,179,682,181.12/1,145,542.40
  6. Step 6: Final answer
    x = 1,214,428.80

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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.