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Finding the Fourth Proportional to 410,611.73, 615,919.04 and 126,300.36

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Solution

The fourth proportional to 410,611.73, 615,919.04 and 126,300.36 is: 189,450.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,611.73 : 615,919.04 = 126,300.36 : x
  2. Step 2: Convert to fraction form
    410,611.73/615,919.04 = 126,300.36/x
  3. Step 3: Cross multiply
    410,611.73x = 615,919.04 × 126,300.36
  4. Step 4: Simplify right side
    410,611.73x = 77,790,796,482.85
  5. Step 5: Solve for x
    x = 77,790,796,482.85/410,611.73
  6. Step 6: Final answer
    x = 189,450.99

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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.