Home / 874,231.96-1,311,015.66-418,355.20

Finding the Fourth Proportional to 874,231.96, 1,311,015.66 and 418,355.20

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Solution

The fourth proportional to 874,231.96, 1,311,015.66 and 418,355.20 is: 627,373.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,231.96 : 1,311,015.66 = 418,355.20 : x
  2. Step 2: Convert to fraction form
    874,231.96/1,311,015.66 = 418,355.20/x
  3. Step 3: Cross multiply
    874,231.96x = 1,311,015.66 × 418,355.20
  4. Step 4: Simplify right side
    874,231.96x = 548,470,218,642.43
  5. Step 5: Solve for x
    x = 548,470,218,642.43/874,231.96
  6. Step 6: Final answer
    x = 627,373.79

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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.