Home / 636,828.64-954,455.64-321,375.76

Finding the Fourth Proportional to 636,828.64, 954,455.64 and 321,375.76

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Solution

The fourth proportional to 636,828.64, 954,455.64 and 321,375.76 is: 481,666.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,828.64 : 954,455.64 = 321,375.76 : x
  2. Step 2: Convert to fraction form
    636,828.64/954,455.64 = 321,375.76/x
  3. Step 3: Cross multiply
    636,828.64x = 954,455.64 × 321,375.76
  4. Step 4: Simplify right side
    636,828.64x = 306,738,906,691.29
  5. Step 5: Solve for x
    x = 306,738,906,691.29/636,828.64
  6. Step 6: Final answer
    x = 481,666.32

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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.