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Finding the Fourth Proportional to 636,811.58, 954,448.41 and 281,422.46

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Solution

The fourth proportional to 636,811.58, 954,448.41 and 281,422.46 is: 421,793.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,811.58 : 954,448.41 = 281,422.46 : x
  2. Step 2: Convert to fraction form
    636,811.58/954,448.41 = 281,422.46/x
  3. Step 3: Cross multiply
    636,811.58x = 954,448.41 × 281,422.46
  4. Step 4: Simplify right side
    636,811.58x = 268,603,219,485.29
  5. Step 5: Solve for x
    x = 268,603,219,485.29/636,811.58
  6. Step 6: Final answer
    x = 421,793.87

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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.