Home / 1,221,199.64-1,829,487.35-815,167.55

Finding the Fourth Proportional to 1,221,199.64, 1,829,487.35 and 815,167.55

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Solution

The fourth proportional to 1,221,199.64, 1,829,487.35 and 815,167.55 is: 1,221,207.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,199.64 : 1,829,487.35 = 815,167.55 : x
  2. Step 2: Convert to fraction form
    1,221,199.64/1,829,487.35 = 815,167.55/x
  3. Step 3: Cross multiply
    1,221,199.64x = 1,829,487.35 × 815,167.55
  4. Step 4: Simplify right side
    1,221,199.64x = 1,491,338,713,745.97
  5. Step 5: Solve for x
    x = 1,491,338,713,745.97/1,221,199.64
  6. Step 6: Final answer
    x = 1,221,207.96

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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.