Home / 809,408.67-1,116,969.78-446,823.20

Finding the Fourth Proportional to 809,408.67, 1,116,969.78 and 446,823.20

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Solution

The fourth proportional to 809,408.67, 1,116,969.78 and 446,823.20 is: 616,608.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,408.67 : 1,116,969.78 = 446,823.20 : x
  2. Step 2: Convert to fraction form
    809,408.67/1,116,969.78 = 446,823.20/x
  3. Step 3: Cross multiply
    809,408.67x = 1,116,969.78 × 446,823.20
  4. Step 4: Simplify right side
    809,408.67x = 499,088,015,870.91
  5. Step 5: Solve for x
    x = 499,088,015,870.91/809,408.67
  6. Step 6: Final answer
    x = 616,608.19

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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.