Home / 2,178,378.82-3,006,245.72-1,211,579.02

Finding the Fourth Proportional to 2,178,378.82, 3,006,245.72 and 1,211,579.02

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Solution

The fourth proportional to 2,178,378.82, 3,006,245.72 and 1,211,579.02 is: 1,672,025.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,178,378.82 : 3,006,245.72 = 1,211,579.02 : x
  2. Step 2: Convert to fraction form
    2,178,378.82/3,006,245.72 = 1,211,579.02/x
  3. Step 3: Cross multiply
    2,178,378.82x = 3,006,245.72 × 1,211,579.02
  4. Step 4: Simplify right side
    2,178,378.82x = 3,642,304,243,316.80
  5. Step 5: Solve for x
    x = 3,642,304,243,316.80/2,178,378.82
  6. Step 6: Final answer
    x = 1,672,025.18

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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.