Home / 780,437.11-1,170,517.46-211,862.37

Finding the Fourth Proportional to 780,437.11, 1,170,517.46 and 211,862.37

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Solution

The fourth proportional to 780,437.11, 1,170,517.46 and 211,862.37 is: 317,756.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,437.11 : 1,170,517.46 = 211,862.37 : x
  2. Step 2: Convert to fraction form
    780,437.11/1,170,517.46 = 211,862.37/x
  3. Step 3: Cross multiply
    780,437.11x = 1,170,517.46 × 211,862.37
  4. Step 4: Simplify right side
    780,437.11x = 247,988,603,201.98
  5. Step 5: Solve for x
    x = 247,988,603,201.98/780,437.11
  6. Step 6: Final answer
    x = 317,756.04

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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.