Home / 1,687,072.68-2,530,341.18-789,137.64

Finding the Fourth Proportional to 1,687,072.68, 2,530,341.18 and 789,137.64

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Solution

The fourth proportional to 1,687,072.68, 2,530,341.18 and 789,137.64 is: 1,183,581.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,687,072.68 : 2,530,341.18 = 789,137.64 : x
  2. Step 2: Convert to fraction form
    1,687,072.68/2,530,341.18 = 789,137.64/x
  3. Step 3: Cross multiply
    1,687,072.68x = 2,530,341.18 × 789,137.64
  4. Step 4: Simplify right side
    1,687,072.68x = 1,996,787,467,180.02
  5. Step 5: Solve for x
    x = 1,996,787,467,180.02/1,687,072.68
  6. Step 6: Final answer
    x = 1,183,581.18

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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.