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Finding the Fourth Proportional to 636,344.10, 954,450.54 and 215,609.04

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Solution

The fourth proportional to 636,344.10, 954,450.54 and 215,609.04 is: 323,391.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,344.10 : 954,450.54 = 215,609.04 : x
  2. Step 2: Convert to fraction form
    636,344.10/954,450.54 = 215,609.04/x
  3. Step 3: Cross multiply
    636,344.10x = 954,450.54 × 215,609.04
  4. Step 4: Simplify right side
    636,344.10x = 205,788,164,656.88
  5. Step 5: Solve for x
    x = 205,788,164,656.88/636,344.10
  6. Step 6: Final answer
    x = 323,391.33

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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.