Home / 627,122.58-865,097.46-397,274.43

Finding the Fourth Proportional to 627,122.58, 865,097.46 and 397,274.43

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Solution

The fourth proportional to 627,122.58, 865,097.46 and 397,274.43 is: 548,028.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,122.58 : 865,097.46 = 397,274.43 : x
  2. Step 2: Convert to fraction form
    627,122.58/865,097.46 = 397,274.43/x
  3. Step 3: Cross multiply
    627,122.58x = 865,097.46 × 397,274.43
  4. Step 4: Simplify right side
    627,122.58x = 343,681,100,315.95
  5. Step 5: Solve for x
    x = 343,681,100,315.95/627,122.58
  6. Step 6: Final answer
    x = 548,028.59

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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.