Home / 809,089.29-1,213,318.17-303,374.39

Finding the Fourth Proportional to 809,089.29, 1,213,318.17 and 303,374.39

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Solution

The fourth proportional to 809,089.29, 1,213,318.17 and 303,374.39 is: 454,943.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,089.29 : 1,213,318.17 = 303,374.39 : x
  2. Step 2: Convert to fraction form
    809,089.29/1,213,318.17 = 303,374.39/x
  3. Step 3: Cross multiply
    809,089.29x = 1,213,318.17 × 303,374.39
  4. Step 4: Simplify right side
    809,089.29x = 368,089,653,633.08
  5. Step 5: Solve for x
    x = 368,089,653,633.08/809,089.29
  6. Step 6: Final answer
    x = 454,943.18

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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.