Home / 3,855,409.45-5,318,752.82-2,478,497.54

Finding the Fourth Proportional to 3,855,409.45, 5,318,752.82 and 2,478,497.54

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Solution

The fourth proportional to 3,855,409.45, 5,318,752.82 and 2,478,497.54 is: 3,419,225.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,855,409.45 : 5,318,752.82 = 2,478,497.54 : x
  2. Step 2: Convert to fraction form
    3,855,409.45/5,318,752.82 = 2,478,497.54/x
  3. Step 3: Cross multiply
    3,855,409.45x = 5,318,752.82 × 2,478,497.54
  4. Step 4: Simplify right side
    3,855,409.45x = 13,182,515,741,251.81
  5. Step 5: Solve for x
    x = 13,182,515,741,251.81/3,855,409.45
  6. Step 6: Final answer
    x = 3,419,225.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.