Home / 1,320,013.58-1,821,619.49-716,401.58

Finding the Fourth Proportional to 1,320,013.58, 1,821,619.49 and 716,401.58

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Solution

The fourth proportional to 1,320,013.58, 1,821,619.49 and 716,401.58 is: 988,634.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,013.58 : 1,821,619.49 = 716,401.58 : x
  2. Step 2: Convert to fraction form
    1,320,013.58/1,821,619.49 = 716,401.58/x
  3. Step 3: Cross multiply
    1,320,013.58x = 1,821,619.49 × 716,401.58
  4. Step 4: Simplify right side
    1,320,013.58x = 1,305,011,081,766.84
  5. Step 5: Solve for x
    x = 1,305,011,081,766.84/1,320,013.58
  6. Step 6: Final answer
    x = 988,634.59

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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.