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Finding the Fourth Proportional to 693,380, 1,040,070 and 168,068

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Solution

The fourth proportional to 693,380, 1,040,070 and 168,068 is: 252,102

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,380 : 1,040,070 = 168,068 : x
  2. Step 2: Convert to fraction form
    693,380/1,040,070 = 168,068/x
  3. Step 3: Cross multiply
    693,380x = 1,040,070 × 168,068
  4. Step 4: Simplify right side
    693,380x = 174,802,484,760
  5. Step 5: Solve for x
    x = 174,802,484,760/693,380
  6. Step 6: Final answer
    x = 252,102

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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.