Home / 2,209,885.12-3,314,891.76-861,993.28

Finding the Fourth Proportional to 2,209,885.12, 3,314,891.76 and 861,993.28

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Solution

The fourth proportional to 2,209,885.12, 3,314,891.76 and 861,993.28 is: 1,293,014.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,209,885.12 : 3,314,891.76 = 861,993.28 : x
  2. Step 2: Convert to fraction form
    2,209,885.12/3,314,891.76 = 861,993.28/x
  3. Step 3: Cross multiply
    2,209,885.12x = 3,314,891.76 × 861,993.28
  4. Step 4: Simplify right side
    2,209,885.12x = 2,857,414,421,047.37
  5. Step 5: Solve for x
    x = 2,857,414,421,047.37/2,209,885.12
  6. Step 6: Final answer
    x = 1,293,014.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.