Home / 1,286,667.35-1,775,813.82-713,892.05

Finding the Fourth Proportional to 1,286,667.35, 1,775,813.82 and 713,892.05

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Solution

The fourth proportional to 1,286,667.35, 1,775,813.82 and 713,892.05 is: 985,289.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,667.35 : 1,775,813.82 = 713,892.05 : x
  2. Step 2: Convert to fraction form
    1,286,667.35/1,775,813.82 = 713,892.05/x
  3. Step 3: Cross multiply
    1,286,667.35x = 1,775,813.82 × 713,892.05
  4. Step 4: Simplify right side
    1,286,667.35x = 1,267,739,368,378.13
  5. Step 5: Solve for x
    x = 1,267,739,368,378.13/1,286,667.35
  6. Step 6: Final answer
    x = 985,289.14

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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.