Home / 1,320,011.27-1,821,616.30-716,399.27

Finding the Fourth Proportional to 1,320,011.27, 1,821,616.30 and 716,399.27

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Solution

The fourth proportional to 1,320,011.27, 1,821,616.30 and 716,399.27 is: 988,631.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,011.27 : 1,821,616.30 = 716,399.27 : x
  2. Step 2: Convert to fraction form
    1,320,011.27/1,821,616.30 = 716,399.27/x
  3. Step 3: Cross multiply
    1,320,011.27x = 1,821,616.30 × 716,399.27
  4. Step 4: Simplify right side
    1,320,011.27x = 1,305,004,587,540.10
  5. Step 5: Solve for x
    x = 1,305,004,587,540.10/1,320,011.27
  6. Step 6: Final answer
    x = 988,631.40

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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.