Home / 1,215,684.27-1,821,896.40-946,137.88

Finding the Fourth Proportional to 1,215,684.27, 1,821,896.40 and 946,137.88

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Solution

The fourth proportional to 1,215,684.27, 1,821,896.40 and 946,137.88 is: 1,417,938.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,684.27 : 1,821,896.40 = 946,137.88 : x
  2. Step 2: Convert to fraction form
    1,215,684.27/1,821,896.40 = 946,137.88/x
  3. Step 3: Cross multiply
    1,215,684.27x = 1,821,896.40 × 946,137.88
  4. Step 4: Simplify right side
    1,215,684.27x = 1,723,765,197,475.63
  5. Step 5: Solve for x
    x = 1,723,765,197,475.63/1,215,684.27
  6. Step 6: Final answer
    x = 1,417,938.23

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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.