Home / 3,179,073.56-4,387,236.68-1,821,209

Finding the Fourth Proportional to 3,179,073.56, 4,387,236.68 and 1,821,209

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Solution

The fourth proportional to 3,179,073.56, 4,387,236.68 and 1,821,209 is: 2,513,334.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,179,073.56 : 4,387,236.68 = 1,821,209 : x
  2. Step 2: Convert to fraction form
    3,179,073.56/4,387,236.68 = 1,821,209/x
  3. Step 3: Cross multiply
    3,179,073.56x = 4,387,236.68 × 1,821,209
  4. Step 4: Simplify right side
    3,179,073.56x = 7,990,074,926,746.12
  5. Step 5: Solve for x
    x = 7,990,074,926,746.12/3,179,073.56
  6. Step 6: Final answer
    x = 2,513,334.40

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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.