Home / 694,219.20-1,040,162.40-338,467.20

Finding the Fourth Proportional to 694,219.20, 1,040,162.40 and 338,467.20

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Solution

The fourth proportional to 694,219.20, 1,040,162.40 and 338,467.20 is: 507,132.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,219.20 : 1,040,162.40 = 338,467.20 : x
  2. Step 2: Convert to fraction form
    694,219.20/1,040,162.40 = 338,467.20/x
  3. Step 3: Cross multiply
    694,219.20x = 1,040,162.40 × 338,467.20
  4. Step 4: Simplify right side
    694,219.20x = 352,060,855,073.28
  5. Step 5: Solve for x
    x = 352,060,855,073.28/694,219.20
  6. Step 6: Final answer
    x = 507,132.12

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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.