Home / 809,311.52-1,214,123.60-310,636.64

Finding the Fourth Proportional to 809,311.52, 1,214,123.60 and 310,636.64

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Solution

The fourth proportional to 809,311.52, 1,214,123.60 and 310,636.64 is: 466,014.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,311.52 : 1,214,123.60 = 310,636.64 : x
  2. Step 2: Convert to fraction form
    809,311.52/1,214,123.60 = 310,636.64/x
  3. Step 3: Cross multiply
    809,311.52x = 1,214,123.60 × 310,636.64
  4. Step 4: Simplify right side
    809,311.52x = 377,151,275,648.70
  5. Step 5: Solve for x
    x = 377,151,275,648.70/809,311.52
  6. Step 6: Final answer
    x = 466,014.96

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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.