Home / 2,115,054-2,918,778.17-1,209,636

Finding the Fourth Proportional to 2,115,054, 2,918,778.17 and 1,209,636

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Solution

The fourth proportional to 2,115,054, 2,918,778.17 and 1,209,636 is: 1,669,299.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,115,054 : 2,918,778.17 = 1,209,636 : x
  2. Step 2: Convert to fraction form
    2,115,054/2,918,778.17 = 1,209,636/x
  3. Step 3: Cross multiply
    2,115,054x = 2,918,778.17 × 1,209,636
  4. Step 4: Simplify right side
    2,115,054x = 3,530,659,144,397.94
  5. Step 5: Solve for x
    x = 3,530,659,144,397.94/2,115,054
  6. Step 6: Final answer
    x = 1,669,299.76

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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.