Home / 1,086,932.64-1,630,458.42-328,755.78

Finding the Fourth Proportional to 1,086,932.64, 1,630,458.42 and 328,755.78

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Solution

The fourth proportional to 1,086,932.64, 1,630,458.42 and 328,755.78 is: 493,151.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086,932.64 : 1,630,458.42 = 328,755.78 : x
  2. Step 2: Convert to fraction form
    1,086,932.64/1,630,458.42 = 328,755.78/x
  3. Step 3: Cross multiply
    1,086,932.64x = 1,630,458.42 × 328,755.78
  4. Step 4: Simplify right side
    1,086,932.64x = 536,022,628,391.83
  5. Step 5: Solve for x
    x = 536,022,628,391.83/1,086,932.64
  6. Step 6: Final answer
    x = 493,151.65

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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.