Home / 1,812,680.40-2,719,895.40-1,279,052.40

Finding the Fourth Proportional to 1,812,680.40, 2,719,895.40 and 1,279,052.40

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Solution

The fourth proportional to 1,812,680.40, 2,719,895.40 and 1,279,052.40 is: 1,919,195.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,812,680.40 : 2,719,895.40 = 1,279,052.40 : x
  2. Step 2: Convert to fraction form
    1,812,680.40/2,719,895.40 = 1,279,052.40/x
  3. Step 3: Cross multiply
    1,812,680.40x = 2,719,895.40 × 1,279,052.40
  4. Step 4: Simplify right side
    1,812,680.40x = 3,478,888,739,118.96
  5. Step 5: Solve for x
    x = 3,478,888,739,118.96/1,812,680.40
  6. Step 6: Final answer
    x = 1,919,195.87

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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.