Home / 811,829.06-1,120,296.52-449,268.20

Finding the Fourth Proportional to 811,829.06, 1,120,296.52 and 449,268.20

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Solution

The fourth proportional to 811,829.06, 1,120,296.52 and 449,268.20 is: 619,974.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,829.06 : 1,120,296.52 = 449,268.20 : x
  2. Step 2: Convert to fraction form
    811,829.06/1,120,296.52 = 449,268.20/x
  3. Step 3: Cross multiply
    811,829.06x = 1,120,296.52 × 449,268.20
  4. Step 4: Simplify right side
    811,829.06x = 503,313,601,006.66
  5. Step 5: Solve for x
    x = 503,313,601,006.66/811,829.06
  6. Step 6: Final answer
    x = 619,974.85

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1.5x scale

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.