Home / 1,086,439.80-1,629,651.60-328,279.80

Finding the Fourth Proportional to 1,086,439.80, 1,629,651.60 and 328,279.80

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Solution

The fourth proportional to 1,086,439.80, 1,629,651.60 and 328,279.80 is: 492,417.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086,439.80 : 1,629,651.60 = 328,279.80 : x
  2. Step 2: Convert to fraction form
    1,086,439.80/1,629,651.60 = 328,279.80/x
  3. Step 3: Cross multiply
    1,086,439.80x = 1,629,651.60 × 328,279.80
  4. Step 4: Simplify right side
    1,086,439.80x = 534,981,701,317.68
  5. Step 5: Solve for x
    x = 534,981,701,317.68/1,086,439.80
  6. Step 6: Final answer
    x = 492,417.25

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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.