Home / 857,121.48-1,182,838.41-494,620.56

Finding the Fourth Proportional to 857,121.48, 1,182,838.41 and 494,620.56

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Solution

The fourth proportional to 857,121.48, 1,182,838.41 and 494,620.56 is: 682,582.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,121.48 : 1,182,838.41 = 494,620.56 : x
  2. Step 2: Convert to fraction form
    857,121.48/1,182,838.41 = 494,620.56/x
  3. Step 3: Cross multiply
    857,121.48x = 1,182,838.41 × 494,620.56
  4. Step 4: Simplify right side
    857,121.48x = 585,056,196,743.71
  5. Step 5: Solve for x
    x = 585,056,196,743.71/857,121.48
  6. Step 6: Final answer
    x = 682,582.59

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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.