Home / 1,394,629.67-2,091,941.07-787,142.58

Finding the Fourth Proportional to 1,394,629.67, 2,091,941.07 and 787,142.58

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Solution

The fourth proportional to 1,394,629.67, 2,091,941.07 and 787,142.58 is: 1,180,711.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,394,629.67 : 2,091,941.07 = 787,142.58 : x
  2. Step 2: Convert to fraction form
    1,394,629.67/2,091,941.07 = 787,142.58/x
  3. Step 3: Cross multiply
    1,394,629.67x = 2,091,941.07 × 787,142.58
  4. Step 4: Simplify right side
    1,394,629.67x = 1,646,655,891,047.76
  5. Step 5: Solve for x
    x = 1,646,655,891,047.76/1,394,629.67
  6. Step 6: Final answer
    x = 1,180,711.94

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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.