Home / 825,838.38-1,139,422.66-481,689.32

Finding the Fourth Proportional to 825,838.38, 1,139,422.66 and 481,689.32

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Solution

The fourth proportional to 825,838.38, 1,139,422.66 and 481,689.32 is: 664,594.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,838.38 : 1,139,422.66 = 481,689.32 : x
  2. Step 2: Convert to fraction form
    825,838.38/1,139,422.66 = 481,689.32/x
  3. Step 3: Cross multiply
    825,838.38x = 1,139,422.66 × 481,689.32
  4. Step 4: Simplify right side
    825,838.38x = 548,847,726,287.99
  5. Step 5: Solve for x
    x = 548,847,726,287.99/825,838.38
  6. Step 6: Final answer
    x = 664,594.60

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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.