Home / 627,280.64-940,972.96-200,878.72

Finding the Fourth Proportional to 627,280.64, 940,972.96 and 200,878.72

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Solution

The fourth proportional to 627,280.64, 940,972.96 and 200,878.72 is: 301,334.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,280.64 : 940,972.96 = 200,878.72 : x
  2. Step 2: Convert to fraction form
    627,280.64/940,972.96 = 200,878.72/x
  3. Step 3: Cross multiply
    627,280.64x = 940,972.96 × 200,878.72
  4. Step 4: Simplify right side
    627,280.64x = 189,021,443,759.41
  5. Step 5: Solve for x
    x = 189,021,443,759.41/627,280.64
  6. Step 6: Final answer
    x = 301,334.73

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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.