Home / 1,286,396.12-1,775,335.67-713,620.82

Finding the Fourth Proportional to 1,286,396.12, 1,775,335.67 and 713,620.82

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Solution

The fourth proportional to 1,286,396.12, 1,775,335.67 and 713,620.82 is: 984,857.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,396.12 : 1,775,335.67 = 713,620.82 : x
  2. Step 2: Convert to fraction form
    1,286,396.12/1,775,335.67 = 713,620.82/x
  3. Step 3: Cross multiply
    1,286,396.12x = 1,775,335.67 × 713,620.82
  4. Step 4: Simplify right side
    1,286,396.12x = 1,266,916,484,155.87
  5. Step 5: Solve for x
    x = 1,266,916,484,155.87/1,286,396.12
  6. Step 6: Final answer
    x = 984,857.21

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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.