Home / 682,126.80-1,023,190.20-208,813.20

Finding the Fourth Proportional to 682,126.80, 1,023,190.20 and 208,813.20

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Solution

The fourth proportional to 682,126.80, 1,023,190.20 and 208,813.20 is: 313,219.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,126.80 : 1,023,190.20 = 208,813.20 : x
  2. Step 2: Convert to fraction form
    682,126.80/1,023,190.20 = 208,813.20/x
  3. Step 3: Cross multiply
    682,126.80x = 1,023,190.20 × 208,813.20
  4. Step 4: Simplify right side
    682,126.80x = 213,655,619,870.64
  5. Step 5: Solve for x
    x = 213,655,619,870.64/682,126.80
  6. Step 6: Final answer
    x = 313,219.80

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Similar ratio
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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.