Home / 1,286,849.68-1,775,854.65-713,889.87

Finding the Fourth Proportional to 1,286,849.68, 1,775,854.65 and 713,889.87

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Solution

The fourth proportional to 1,286,849.68, 1,775,854.65 and 713,889.87 is: 985,169.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,849.68 : 1,775,854.65 = 713,889.87 : x
  2. Step 2: Convert to fraction form
    1,286,849.68/1,775,854.65 = 713,889.87/x
  3. Step 3: Cross multiply
    1,286,849.68x = 1,775,854.65 × 713,889.87
  4. Step 4: Simplify right side
    1,286,849.68x = 1,267,764,645,227.40
  5. Step 5: Solve for x
    x = 1,267,764,645,227.40/1,286,849.68
  6. Step 6: Final answer
    x = 985,169.18

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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.