Home / 1,320,060.28-1,821,682.74-716,448.28

Finding the Fourth Proportional to 1,320,060.28, 1,821,682.74 and 716,448.28

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Solution

The fourth proportional to 1,320,060.28, 1,821,682.74 and 716,448.28 is: 988,698.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,060.28 : 1,821,682.74 = 716,448.28 : x
  2. Step 2: Convert to fraction form
    1,320,060.28/1,821,682.74 = 716,448.28/x
  3. Step 3: Cross multiply
    1,320,060.28x = 1,821,682.74 × 716,448.28
  4. Step 4: Simplify right side
    1,320,060.28x = 1,305,141,465,778.69
  5. Step 5: Solve for x
    x = 1,305,141,465,778.69/1,320,060.28
  6. Step 6: Final answer
    x = 988,698.38

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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.