Home / 674,940.40-1,012,564.20-394,313.20

Finding the Fourth Proportional to 674,940.40, 1,012,564.20 and 394,313.20

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Solution

The fourth proportional to 674,940.40, 1,012,564.20 and 394,313.20 is: 591,559.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,940.40 : 1,012,564.20 = 394,313.20 : x
  2. Step 2: Convert to fraction form
    674,940.40/1,012,564.20 = 394,313.20/x
  3. Step 3: Cross multiply
    674,940.40x = 1,012,564.20 × 394,313.20
  4. Step 4: Simplify right side
    674,940.40x = 399,267,429,907.44
  5. Step 5: Solve for x
    x = 399,267,429,907.44/674,940.40
  6. Step 6: Final answer
    x = 591,559.54

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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.