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Finding the Fourth Proportional to 658,662.39, 908,942.31 and 372,176.34

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Solution

The fourth proportional to 658,662.39, 908,942.31 and 372,176.34 is: 513,596.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,662.39 : 908,942.31 = 372,176.34 : x
  2. Step 2: Convert to fraction form
    658,662.39/908,942.31 = 372,176.34/x
  3. Step 3: Cross multiply
    658,662.39x = 908,942.31 × 372,176.34
  4. Step 4: Simplify right side
    658,662.39x = 338,286,822,206.95
  5. Step 5: Solve for x
    x = 338,286,822,206.95/658,662.39
  6. Step 6: Final answer
    x = 513,596.69

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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.