Home / 290,944.44-436,417.20-80,582.94

Finding the Fourth Proportional to 290,944.44, 436,417.20 and 80,582.94

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Solution

The fourth proportional to 290,944.44, 436,417.20 and 80,582.94 is: 120,874.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,944.44 : 436,417.20 = 80,582.94 : x
  2. Step 2: Convert to fraction form
    290,944.44/436,417.20 = 80,582.94/x
  3. Step 3: Cross multiply
    290,944.44x = 436,417.20 × 80,582.94
  4. Step 4: Simplify right side
    290,944.44x = 35,167,781,042.57
  5. Step 5: Solve for x
    x = 35,167,781,042.57/290,944.44
  6. Step 6: Final answer
    x = 120,874.56

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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.