Home / 3,380,306.79-5,070,458.75-821,508.15

Finding the Fourth Proportional to 3,380,306.79, 5,070,458.75 and 821,508.15

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Solution

The fourth proportional to 3,380,306.79, 5,070,458.75 and 821,508.15 is: 1,232,261.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,380,306.79 : 5,070,458.75 = 821,508.15 : x
  2. Step 2: Convert to fraction form
    3,380,306.79/5,070,458.75 = 821,508.15/x
  3. Step 3: Cross multiply
    3,380,306.79x = 5,070,458.75 × 821,508.15
  4. Step 4: Simplify right side
    3,380,306.79x = 4,165,423,183,256.27
  5. Step 5: Solve for x
    x = 4,165,423,183,256.27/3,380,306.79
  6. Step 6: Final answer
    x = 1,232,261.88

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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.