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Finding the Fourth Proportional to 625,352.88, 862,984.80 and 338,880

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Solution

The fourth proportional to 625,352.88, 862,984.80 and 338,880 is: 467,653.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,352.88 : 862,984.80 = 338,880 : x
  2. Step 2: Convert to fraction form
    625,352.88/862,984.80 = 338,880/x
  3. Step 3: Cross multiply
    625,352.88x = 862,984.80 × 338,880
  4. Step 4: Simplify right side
    625,352.88x = 292,448,289,024
  5. Step 5: Solve for x
    x = 292,448,289,024/625,352.88
  6. Step 6: Final answer
    x = 467,653.22

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.