Home / 502,787.28-693,828.72-276,431.04

Finding the Fourth Proportional to 502,787.28, 693,828.72 and 276,431.04

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Solution

The fourth proportional to 502,787.28, 693,828.72 and 276,431.04 is: 381,465.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,787.28 : 693,828.72 = 276,431.04 : x
  2. Step 2: Convert to fraction form
    502,787.28/693,828.72 = 276,431.04/x
  3. Step 3: Cross multiply
    502,787.28x = 693,828.72 × 276,431.04
  4. Step 4: Simplify right side
    502,787.28x = 191,795,794,651.47
  5. Step 5: Solve for x
    x = 191,795,794,651.47/502,787.28
  6. Step 6: Final answer
    x = 381,465.09

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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.