Home / 851,216.31-1,274,571.86-513,805.95

Finding the Fourth Proportional to 851,216.31, 1,274,571.86 and 513,805.95

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Solution

The fourth proportional to 851,216.31, 1,274,571.86 and 513,805.95 is: 769,349.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,216.31 : 1,274,571.86 = 513,805.95 : x
  2. Step 2: Convert to fraction form
    851,216.31/1,274,571.86 = 513,805.95/x
  3. Step 3: Cross multiply
    851,216.31x = 1,274,571.86 × 513,805.95
  4. Step 4: Simplify right side
    851,216.31x = 654,882,602,801.54
  5. Step 5: Solve for x
    x = 654,882,602,801.54/851,216.31
  6. Step 6: Final answer
    x = 769,349.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.