Home / 787,310.78-1,086,114.66-464,804.82

Finding the Fourth Proportional to 787,310.78, 1,086,114.66 and 464,804.82

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Solution

The fourth proportional to 787,310.78, 1,086,114.66 and 464,804.82 is: 641,209.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,310.78 : 1,086,114.66 = 464,804.82 : x
  2. Step 2: Convert to fraction form
    787,310.78/1,086,114.66 = 464,804.82/x
  3. Step 3: Cross multiply
    787,310.78x = 1,086,114.66 × 464,804.82
  4. Step 4: Simplify right side
    787,310.78x = 504,831,329,040.66
  5. Step 5: Solve for x
    x = 504,831,329,040.66/787,310.78
  6. Step 6: Final answer
    x = 641,209.73

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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.