Home / 831,880.78-1,147,995.48-449,907.56

Finding the Fourth Proportional to 831,880.78, 1,147,995.48 and 449,907.56

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Solution

The fourth proportional to 831,880.78, 1,147,995.48 and 449,907.56 is: 620,872.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,880.78 : 1,147,995.48 = 449,907.56 : x
  2. Step 2: Convert to fraction form
    831,880.78/1,147,995.48 = 449,907.56/x
  3. Step 3: Cross multiply
    831,880.78x = 1,147,995.48 × 449,907.56
  4. Step 4: Simplify right side
    831,880.78x = 516,491,845,549.99
  5. Step 5: Solve for x
    x = 516,491,845,549.99/831,880.78
  6. Step 6: Final answer
    x = 620,872.44

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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.