Home / 1,394,628.17-2,091,938.82-787,141.08

Finding the Fourth Proportional to 1,394,628.17, 2,091,938.82 and 787,141.08

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Solution

The fourth proportional to 1,394,628.17, 2,091,938.82 and 787,141.08 is: 1,180,709.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,394,628.17 : 2,091,938.82 = 787,141.08 : x
  2. Step 2: Convert to fraction form
    1,394,628.17/2,091,938.82 = 787,141.08/x
  3. Step 3: Cross multiply
    1,394,628.17x = 2,091,938.82 × 787,141.08
  4. Step 4: Simplify right side
    1,394,628.17x = 1,646,650,982,068.73
  5. Step 5: Solve for x
    x = 1,646,650,982,068.73/1,394,628.17
  6. Step 6: Final answer
    x = 1,180,709.69

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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.