Home / 627,378.28-865,766.81-351,717.86

Finding the Fourth Proportional to 627,378.28, 865,766.81 and 351,717.86

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Solution

The fourth proportional to 627,378.28, 865,766.81 and 351,717.86 is: 485,362.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,378.28 : 865,766.81 = 351,717.86 : x
  2. Step 2: Convert to fraction form
    627,378.28/865,766.81 = 351,717.86/x
  3. Step 3: Cross multiply
    627,378.28x = 865,766.81 × 351,717.86
  4. Step 4: Simplify right side
    627,378.28x = 304,505,652,715.94
  5. Step 5: Solve for x
    x = 304,505,652,715.94/627,378.28
  6. Step 6: Final answer
    x = 485,362.12

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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.