Home / 683,691.60-1,024,846.20-309,982.80

Finding the Fourth Proportional to 683,691.60, 1,024,846.20 and 309,982.80

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Solution

The fourth proportional to 683,691.60, 1,024,846.20 and 309,982.80 is: 464,660.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,691.60 : 1,024,846.20 = 309,982.80 : x
  2. Step 2: Convert to fraction form
    683,691.60/1,024,846.20 = 309,982.80/x
  3. Step 3: Cross multiply
    683,691.60x = 1,024,846.20 × 309,982.80
  4. Step 4: Simplify right side
    683,691.60x = 317,684,694,645.36
  5. Step 5: Solve for x
    x = 317,684,694,645.36/683,691.60
  6. Step 6: Final answer
    x = 464,660.81

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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.