Home / 823,847.20-1,234,388.40-402,215.20

Finding the Fourth Proportional to 823,847.20, 1,234,388.40 and 402,215.20

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Solution

The fourth proportional to 823,847.20, 1,234,388.40 and 402,215.20 is: 602,647.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,847.20 : 1,234,388.40 = 402,215.20 : x
  2. Step 2: Convert to fraction form
    823,847.20/1,234,388.40 = 402,215.20/x
  3. Step 3: Cross multiply
    823,847.20x = 1,234,388.40 × 402,215.20
  4. Step 4: Simplify right side
    823,847.20x = 496,489,777,183.68
  5. Step 5: Solve for x
    x = 496,489,777,183.68/823,847.20
  6. Step 6: Final answer
    x = 602,647.89

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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.