Home / 1,919,792.82-2,879,861.40-499,861.20

Finding the Fourth Proportional to 1,919,792.82, 2,879,861.40 and 499,861.20

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Solution

The fourth proportional to 1,919,792.82, 2,879,861.40 and 499,861.20 is: 749,836.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,919,792.82 : 2,879,861.40 = 499,861.20 : x
  2. Step 2: Convert to fraction form
    1,919,792.82/2,879,861.40 = 499,861.20/x
  3. Step 3: Cross multiply
    1,919,792.82x = 2,879,861.40 × 499,861.20
  4. Step 4: Simplify right side
    1,919,792.82x = 1,439,530,975,237.68
  5. Step 5: Solve for x
    x = 1,439,530,975,237.68/1,919,792.82
  6. Step 6: Final answer
    x = 749,836.63

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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.