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Finding the Fourth Proportional to 693,580, 1,040,370 and 168,268

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Solution

The fourth proportional to 693,580, 1,040,370 and 168,268 is: 252,402

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,580 : 1,040,370 = 168,268 : x
  2. Step 2: Convert to fraction form
    693,580/1,040,370 = 168,268/x
  3. Step 3: Cross multiply
    693,580x = 1,040,370 × 168,268
  4. Step 4: Simplify right side
    693,580x = 175,060,979,160
  5. Step 5: Solve for x
    x = 175,060,979,160/693,580
  6. Step 6: Final answer
    x = 252,402

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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.