Home / 1,425,795.82-2,138,693.73-479,166.52

Finding the Fourth Proportional to 1,425,795.82, 2,138,693.73 and 479,166.52

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Solution

The fourth proportional to 1,425,795.82, 2,138,693.73 and 479,166.52 is: 718,749.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425,795.82 : 2,138,693.73 = 479,166.52 : x
  2. Step 2: Convert to fraction form
    1,425,795.82/2,138,693.73 = 479,166.52/x
  3. Step 3: Cross multiply
    1,425,795.82x = 2,138,693.73 × 479,166.52
  4. Step 4: Simplify right side
    1,425,795.82x = 1,024,790,431,949.92
  5. Step 5: Solve for x
    x = 1,024,790,431,949.92/1,425,795.82
  6. Step 6: Final answer
    x = 718,749.78

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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.