Home / 811,051.50-1,216,843.79-331,682.54

Finding the Fourth Proportional to 811,051.50, 1,216,843.79 and 331,682.54

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Solution

The fourth proportional to 811,051.50, 1,216,843.79 and 331,682.54 is: 497,632.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,051.50 : 1,216,843.79 = 331,682.54 : x
  2. Step 2: Convert to fraction form
    811,051.50/1,216,843.79 = 331,682.54/x
  3. Step 3: Cross multiply
    811,051.50x = 1,216,843.79 × 331,682.54
  4. Step 4: Simplify right side
    811,051.50x = 403,605,839,629.07
  5. Step 5: Solve for x
    x = 403,605,839,629.07/811,051.50
  6. Step 6: Final answer
    x = 497,632.81

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1.5x scale

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.