Home / 819,983.46-1,131,578.34-475,886.55

Finding the Fourth Proportional to 819,983.46, 1,131,578.34 and 475,886.55

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Solution

The fourth proportional to 819,983.46, 1,131,578.34 and 475,886.55 is: 656,724.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,983.46 : 1,131,578.34 = 475,886.55 : x
  2. Step 2: Convert to fraction form
    819,983.46/1,131,578.34 = 475,886.55/x
  3. Step 3: Cross multiply
    819,983.46x = 1,131,578.34 × 475,886.55
  4. Step 4: Simplify right side
    819,983.46x = 538,502,912,277.33
  5. Step 5: Solve for x
    x = 538,502,912,277.33/819,983.46
  6. Step 6: Final answer
    x = 656,724.12

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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.