Home / 1,286,434.30-1,775,388.36-713,659

Finding the Fourth Proportional to 1,286,434.30, 1,775,388.36 and 713,659

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Solution

The fourth proportional to 1,286,434.30, 1,775,388.36 and 713,659 is: 984,909.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,434.30 : 1,775,388.36 = 713,659 : x
  2. Step 2: Convert to fraction form
    1,286,434.30/1,775,388.36 = 713,659/x
  3. Step 3: Cross multiply
    1,286,434.30x = 1,775,388.36 × 713,659
  4. Step 4: Simplify right side
    1,286,434.30x = 1,267,021,881,609.24
  5. Step 5: Solve for x
    x = 1,267,021,881,609.24/1,286,434.30
  6. Step 6: Final answer
    x = 984,909.90

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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.