Home / 3,217,520.79-4,826,279.48-821,364.57

Finding the Fourth Proportional to 3,217,520.79, 4,826,279.48 and 821,364.57

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Solution

The fourth proportional to 3,217,520.79, 4,826,279.48 and 821,364.57 is: 1,232,046.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,217,520.79 : 4,826,279.48 = 821,364.57 : x
  2. Step 2: Convert to fraction form
    3,217,520.79/4,826,279.48 = 821,364.57/x
  3. Step 3: Cross multiply
    3,217,520.79x = 4,826,279.48 × 821,364.57
  4. Step 4: Simplify right side
    3,217,520.79x = 3,964,134,965,683.20
  5. Step 5: Solve for x
    x = 3,964,134,965,683.20/3,217,520.79
  6. Step 6: Final answer
    x = 1,232,046.42

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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.