Home / 946,381.71-1,305,957.36-516,578.80

Finding the Fourth Proportional to 946,381.71, 1,305,957.36 and 516,578.80

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Solution

The fourth proportional to 946,381.71, 1,305,957.36 and 516,578.80 is: 712,851.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    946,381.71 : 1,305,957.36 = 516,578.80 : x
  2. Step 2: Convert to fraction form
    946,381.71/1,305,957.36 = 516,578.80/x
  3. Step 3: Cross multiply
    946,381.71x = 1,305,957.36 × 516,578.80
  4. Step 4: Simplify right side
    946,381.71x = 674,629,885,879.97
  5. Step 5: Solve for x
    x = 674,629,885,879.97/946,381.71
  6. Step 6: Final answer
    x = 712,851.78

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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.