Home / 682,685.28-1,023,690.93-209,256.48

Finding the Fourth Proportional to 682,685.28, 1,023,690.93 and 209,256.48

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Solution

The fourth proportional to 682,685.28, 1,023,690.93 and 209,256.48 is: 313,781.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,685.28 : 1,023,690.93 = 209,256.48 : x
  2. Step 2: Convert to fraction form
    682,685.28/1,023,690.93 = 209,256.48/x
  3. Step 3: Cross multiply
    682,685.28x = 1,023,690.93 × 209,256.48
  4. Step 4: Simplify right side
    682,685.28x = 214,213,960,619.73
  5. Step 5: Solve for x
    x = 214,213,960,619.73/682,685.28
  6. Step 6: Final answer
    x = 313,781.43

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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.