Home / 494,259.98-682,151.64-312,988.46

Finding the Fourth Proportional to 494,259.98, 682,151.64 and 312,988.46

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Solution

The fourth proportional to 494,259.98, 682,151.64 and 312,988.46 is: 431,970.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,259.98 : 682,151.64 = 312,988.46 : x
  2. Step 2: Convert to fraction form
    494,259.98/682,151.64 = 312,988.46/x
  3. Step 3: Cross multiply
    494,259.98x = 682,151.64 × 312,988.46
  4. Step 4: Simplify right side
    494,259.98x = 213,505,591,290.07
  5. Step 5: Solve for x
    x = 213,505,591,290.07/494,259.98
  6. Step 6: Final answer
    x = 431,970.22

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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.