Home / 811,826.06-1,120,292.38-449,265.20

Finding the Fourth Proportional to 811,826.06, 1,120,292.38 and 449,265.20

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Solution

The fourth proportional to 811,826.06, 1,120,292.38 and 449,265.20 is: 619,970.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,826.06 : 1,120,292.38 = 449,265.20 : x
  2. Step 2: Convert to fraction form
    811,826.06/1,120,292.38 = 449,265.20/x
  3. Step 3: Cross multiply
    811,826.06x = 1,120,292.38 × 449,265.20
  4. Step 4: Simplify right side
    811,826.06x = 503,308,377,326.50
  5. Step 5: Solve for x
    x = 503,308,377,326.50/811,826.06
  6. Step 6: Final answer
    x = 619,970.71

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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.