Home / 682,489.98-1,022,364.36-339,901.38

Finding the Fourth Proportional to 682,489.98, 1,022,364.36 and 339,901.38

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Solution

The fourth proportional to 682,489.98, 1,022,364.36 and 339,901.38 is: 509,169.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,489.98 : 1,022,364.36 = 339,901.38 : x
  2. Step 2: Convert to fraction form
    682,489.98/1,022,364.36 = 339,901.38/x
  3. Step 3: Cross multiply
    682,489.98x = 1,022,364.36 × 339,901.38
  4. Step 4: Simplify right side
    682,489.98x = 347,503,056,826.82
  5. Step 5: Solve for x
    x = 347,503,056,826.82/682,489.98
  6. Step 6: Final answer
    x = 509,169.46

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1.5x scale

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.