Home / 677,915.88-1,015,634.52-317,425.38

Finding the Fourth Proportional to 677,915.88, 1,015,634.52 and 317,425.38

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Solution

The fourth proportional to 677,915.88, 1,015,634.52 and 317,425.38 is: 475,557.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,915.88 : 1,015,634.52 = 317,425.38 : x
  2. Step 2: Convert to fraction form
    677,915.88/1,015,634.52 = 317,425.38/x
  3. Step 3: Cross multiply
    677,915.88x = 1,015,634.52 × 317,425.38
  4. Step 4: Simplify right side
    677,915.88x = 322,388,173,452.12
  5. Step 5: Solve for x
    x = 322,388,173,452.12/677,915.88
  6. Step 6: Final answer
    x = 475,557.78

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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.