Home / 3,121,503-4,680,103.14-1,228,461.72

Finding the Fourth Proportional to 3,121,503, 4,680,103.14 and 1,228,461.72

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Solution

The fourth proportional to 3,121,503, 4,680,103.14 and 1,228,461.72 is: 1,841,845.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,121,503 : 4,680,103.14 = 1,228,461.72 : x
  2. Step 2: Convert to fraction form
    3,121,503/4,680,103.14 = 1,228,461.72/x
  3. Step 3: Cross multiply
    3,121,503x = 4,680,103.14 × 1,228,461.72
  4. Step 4: Simplify right side
    3,121,503x = 5,749,327,553,141.80
  5. Step 5: Solve for x
    x = 5,749,327,553,141.80/3,121,503
  6. Step 6: Final answer
    x = 1,841,845.92

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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.