Home / 384,511.28-576,766.80-279,995.36

Finding the Fourth Proportional to 384,511.28, 576,766.80 and 279,995.36

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Solution

The fourth proportional to 384,511.28, 576,766.80 and 279,995.36 is: 419,992.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,511.28 : 576,766.80 = 279,995.36 : x
  2. Step 2: Convert to fraction form
    384,511.28/576,766.80 = 279,995.36/x
  3. Step 3: Cross multiply
    384,511.28x = 576,766.80 × 279,995.36
  4. Step 4: Simplify right side
    384,511.28x = 161,492,027,802.05
  5. Step 5: Solve for x
    x = 161,492,027,802.05/384,511.28
  6. Step 6: Final answer
    x = 419,992.95

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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.