Home / 1,286,993.07-1,775,973.20-713,999.07

Finding the Fourth Proportional to 1,286,993.07, 1,775,973.20 and 713,999.07

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Solution

The fourth proportional to 1,286,993.07, 1,775,973.20 and 713,999.07 is: 985,275.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,993.07 : 1,775,973.20 = 713,999.07 : x
  2. Step 2: Convert to fraction form
    1,286,993.07/1,775,973.20 = 713,999.07/x
  3. Step 3: Cross multiply
    1,286,993.07x = 1,775,973.20 × 713,999.07
  4. Step 4: Simplify right side
    1,286,993.07x = 1,268,043,209,574.93
  5. Step 5: Solve for x
    x = 1,268,043,209,574.93/1,286,993.07
  6. Step 6: Final answer
    x = 985,275.86

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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.