Home / 693,638.70-1,040,652.45-338,664.30

Finding the Fourth Proportional to 693,638.70, 1,040,652.45 and 338,664.30

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Solution

The fourth proportional to 693,638.70, 1,040,652.45 and 338,664.30 is: 508,091.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,638.70 : 1,040,652.45 = 338,664.30 : x
  2. Step 2: Convert to fraction form
    693,638.70/1,040,652.45 = 338,664.30/x
  3. Step 3: Cross multiply
    693,638.70x = 1,040,652.45 × 338,664.30
  4. Step 4: Simplify right side
    693,638.70x = 352,431,833,522.54
  5. Step 5: Solve for x
    x = 352,431,833,522.54/693,638.70
  6. Step 6: Final answer
    x = 508,091.36

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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.