Home / 1,286,317.80-1,775,227.68-713,542.50

Finding the Fourth Proportional to 1,286,317.80, 1,775,227.68 and 713,542.50

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Solution

The fourth proportional to 1,286,317.80, 1,775,227.68 and 713,542.50 is: 984,749.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,317.80 : 1,775,227.68 = 713,542.50 : x
  2. Step 2: Convert to fraction form
    1,286,317.80/1,775,227.68 = 713,542.50/x
  3. Step 3: Cross multiply
    1,286,317.80x = 1,775,227.68 × 713,542.50
  4. Step 4: Simplify right side
    1,286,317.80x = 1,266,700,396,856.40
  5. Step 5: Solve for x
    x = 1,266,700,396,856.40/1,286,317.80
  6. Step 6: Final answer
    x = 984,749.18

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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.