Home / 657,846.83-985,975.54-320,381.80

Finding the Fourth Proportional to 657,846.83, 985,975.54 and 320,381.80

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Solution

The fourth proportional to 657,846.83, 985,975.54 and 320,381.80 is: 480,185.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,846.83 : 985,975.54 = 320,381.80 : x
  2. Step 2: Convert to fraction form
    657,846.83/985,975.54 = 320,381.80/x
  3. Step 3: Cross multiply
    657,846.83x = 985,975.54 × 320,381.80
  4. Step 4: Simplify right side
    657,846.83x = 315,888,614,995.28
  5. Step 5: Solve for x
    x = 315,888,614,995.28/657,846.83
  6. Step 6: Final answer
    x = 480,185.66

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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.