Home / 775,850.45-1,070,656.80-449,177.22

Finding the Fourth Proportional to 775,850.45, 1,070,656.80 and 449,177.22

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Solution

The fourth proportional to 775,850.45, 1,070,656.80 and 449,177.22 is: 619,854.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,850.45 : 1,070,656.80 = 449,177.22 : x
  2. Step 2: Convert to fraction form
    775,850.45/1,070,656.80 = 449,177.22/x
  3. Step 3: Cross multiply
    775,850.45x = 1,070,656.80 × 449,177.22
  4. Step 4: Simplify right side
    775,850.45x = 480,914,644,998.10
  5. Step 5: Solve for x
    x = 480,914,644,998.10/775,850.45
  6. Step 6: Final answer
    x = 619,854.83

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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.