Home / 1,221,199.27-1,829,486.79-815,167.17

Finding the Fourth Proportional to 1,221,199.27, 1,829,486.79 and 815,167.17

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Solution

The fourth proportional to 1,221,199.27, 1,829,486.79 and 815,167.17 is: 1,221,207.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,199.27 : 1,829,486.79 = 815,167.17 : x
  2. Step 2: Convert to fraction form
    1,221,199.27/1,829,486.79 = 815,167.17/x
  3. Step 3: Cross multiply
    1,221,199.27x = 1,829,486.79 × 815,167.17
  4. Step 4: Simplify right side
    1,221,199.27x = 1,491,337,569,156.68
  5. Step 5: Solve for x
    x = 1,491,337,569,156.68/1,221,199.27
  6. Step 6: Final answer
    x = 1,221,207.39

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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.