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Finding the Fourth Proportional to 693,340, 1,040,010 and 168,028

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Solution

The fourth proportional to 693,340, 1,040,010 and 168,028 is: 252,042

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,340 : 1,040,010 = 168,028 : x
  2. Step 2: Convert to fraction form
    693,340/1,040,010 = 168,028/x
  3. Step 3: Cross multiply
    693,340x = 1,040,010 × 168,028
  4. Step 4: Simplify right side
    693,340x = 174,750,800,280
  5. Step 5: Solve for x
    x = 174,750,800,280/693,340
  6. Step 6: Final answer
    x = 252,042

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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.