Home / 683,290.40-1,025,227.20-328,121.60

Finding the Fourth Proportional to 683,290.40, 1,025,227.20 and 328,121.60

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Solution

The fourth proportional to 683,290.40, 1,025,227.20 and 328,121.60 is: 492,322.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,290.40 : 1,025,227.20 = 328,121.60 : x
  2. Step 2: Convert to fraction form
    683,290.40/1,025,227.20 = 328,121.60/x
  3. Step 3: Cross multiply
    683,290.40x = 1,025,227.20 × 328,121.60
  4. Step 4: Simplify right side
    683,290.40x = 336,399,189,227.52
  5. Step 5: Solve for x
    x = 336,399,189,227.52/683,290.40
  6. Step 6: Final answer
    x = 492,322.43

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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.