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Finding the Fourth Proportional to 558,959.92, 771,380.84 and 304,315.44

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Solution

The fourth proportional to 558,959.92, 771,380.84 and 304,315.44 is: 419,964.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,959.92 : 771,380.84 = 304,315.44 : x
  2. Step 2: Convert to fraction form
    558,959.92/771,380.84 = 304,315.44/x
  3. Step 3: Cross multiply
    558,959.92x = 771,380.84 × 304,315.44
  4. Step 4: Simplify right side
    558,959.92x = 234,743,099,732.17
  5. Step 5: Solve for x
    x = 234,743,099,732.17/558,959.92
  6. Step 6: Final answer
    x = 419,964.10

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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.