Home / 1,425,682-1,966,956.78-813,394.90

Finding the Fourth Proportional to 1,425,682, 1,966,956.78 and 813,394.90

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Solution

The fourth proportional to 1,425,682, 1,966,956.78 and 813,394.90 is: 1,122,208.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425,682 : 1,966,956.78 = 813,394.90 : x
  2. Step 2: Convert to fraction form
    1,425,682/1,966,956.78 = 813,394.90/x
  3. Step 3: Cross multiply
    1,425,682x = 1,966,956.78 × 813,394.90
  4. Step 4: Simplify right side
    1,425,682x = 1,599,912,613,372.42
  5. Step 5: Solve for x
    x = 1,599,912,613,372.42/1,425,682
  6. Step 6: Final answer
    x = 1,122,208.61

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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.