Home / 811,847.88-1,120,352.25-449,296.74

Finding the Fourth Proportional to 811,847.88, 1,120,352.25 and 449,296.74

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Solution

The fourth proportional to 811,847.88, 1,120,352.25 and 449,296.74 is: 620,030.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,847.88 : 1,120,352.25 = 449,296.74 : x
  2. Step 2: Convert to fraction form
    811,847.88/1,120,352.25 = 449,296.74/x
  3. Step 3: Cross multiply
    811,847.88x = 1,120,352.25 × 449,296.74
  4. Step 4: Simplify right side
    811,847.88x = 503,370,613,576.67
  5. Step 5: Solve for x
    x = 503,370,613,576.67/811,847.88
  6. Step 6: Final answer
    x = 620,030.71

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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.