Home / 851,556.27-1,275,888.44-513,887.39

Finding the Fourth Proportional to 851,556.27, 1,275,888.44 and 513,887.39

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Solution

The fourth proportional to 851,556.27, 1,275,888.44 and 513,887.39 is: 769,958.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,556.27 : 1,275,888.44 = 513,887.39 : x
  2. Step 2: Convert to fraction form
    851,556.27/1,275,888.44 = 513,887.39/x
  3. Step 3: Cross multiply
    851,556.27x = 1,275,888.44 × 513,887.39
  4. Step 4: Simplify right side
    851,556.27x = 655,662,980,052.63
  5. Step 5: Solve for x
    x = 655,662,980,052.63/851,556.27
  6. Step 6: Final answer
    x = 769,958.49

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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.