Home / 1,286,399.20-1,775,114.58-713,437.60

Finding the Fourth Proportional to 1,286,399.20, 1,775,114.58 and 713,437.60

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Solution

The fourth proportional to 1,286,399.20, 1,775,114.58 and 713,437.60 is: 984,479.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,399.20 : 1,775,114.58 = 713,437.60 : x
  2. Step 2: Convert to fraction form
    1,286,399.20/1,775,114.58 = 713,437.60/x
  3. Step 3: Cross multiply
    1,286,399.20x = 1,775,114.58 × 713,437.60
  4. Step 4: Simplify right side
    1,286,399.20x = 1,266,433,485,680.21
  5. Step 5: Solve for x
    x = 1,266,433,485,680.21/1,286,399.20
  6. Step 6: Final answer
    x = 984,479.38

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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.