Home / 851,216.69-1,274,572.41-513,806.33

Finding the Fourth Proportional to 851,216.69, 1,274,572.41 and 513,806.33

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Solution

The fourth proportional to 851,216.69, 1,274,572.41 and 513,806.33 is: 769,349.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,216.69 : 1,274,572.41 = 513,806.33 : x
  2. Step 2: Convert to fraction form
    851,216.69/1,274,572.41 = 513,806.33/x
  3. Step 3: Cross multiply
    851,216.69x = 1,274,572.41 × 513,806.33
  4. Step 4: Simplify right side
    851,216.69x = 654,883,365,928.49
  5. Step 5: Solve for x
    x = 654,883,365,928.49/851,216.69
  6. Step 6: Final answer
    x = 769,349.78

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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.