Home / 825,835.38-1,139,418.52-481,686.32

Finding the Fourth Proportional to 825,835.38, 1,139,418.52 and 481,686.32

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Solution

The fourth proportional to 825,835.38, 1,139,418.52 and 481,686.32 is: 664,590.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,835.38 : 1,139,418.52 = 481,686.32 : x
  2. Step 2: Convert to fraction form
    825,835.38/1,139,418.52 = 481,686.32/x
  3. Step 3: Cross multiply
    825,835.38x = 1,139,418.52 × 481,686.32
  4. Step 4: Simplify right side
    825,835.38x = 548,842,313,838.65
  5. Step 5: Solve for x
    x = 548,842,313,838.65/825,835.38
  6. Step 6: Final answer
    x = 664,590.46

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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.