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Finding the Fourth Proportional to 636,855.02, 954,495.20 and 321,402.14

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Solution

The fourth proportional to 636,855.02, 954,495.20 and 321,402.14 is: 481,705.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,855.02 : 954,495.20 = 321,402.14 : x
  2. Step 2: Convert to fraction form
    636,855.02/954,495.20 = 321,402.14/x
  3. Step 3: Cross multiply
    636,855.02x = 954,495.20 × 321,402.14
  4. Step 4: Simplify right side
    636,855.02x = 306,776,793,520.24
  5. Step 5: Solve for x
    x = 306,776,793,520.24/636,855.02
  6. Step 6: Final answer
    x = 481,705.86

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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.