Home / 800,256.11-1,200,377.78-326,609.31

Finding the Fourth Proportional to 800,256.11, 1,200,377.78 and 326,609.31

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Solution

The fourth proportional to 800,256.11, 1,200,377.78 and 326,609.31 is: 489,911.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,256.11 : 1,200,377.78 = 326,609.31 : x
  2. Step 2: Convert to fraction form
    800,256.11/1,200,377.78 = 326,609.31/x
  3. Step 3: Cross multiply
    800,256.11x = 1,200,377.78 × 326,609.31
  4. Step 4: Simplify right side
    800,256.11x = 392,054,562,558.29
  5. Step 5: Solve for x
    x = 392,054,562,558.29/800,256.11
  6. Step 6: Final answer
    x = 489,911.37

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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.