Home / 665,344.35-996,868.35-309,628.80

Finding the Fourth Proportional to 665,344.35, 996,868.35 and 309,628.80

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Solution

The fourth proportional to 665,344.35, 996,868.35 and 309,628.80 is: 463,908.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,344.35 : 996,868.35 = 309,628.80 : x
  2. Step 2: Convert to fraction form
    665,344.35/996,868.35 = 309,628.80/x
  3. Step 3: Cross multiply
    665,344.35x = 996,868.35 × 309,628.80
  4. Step 4: Simplify right side
    665,344.35x = 308,659,150,968.48
  5. Step 5: Solve for x
    x = 308,659,150,968.48/665,344.35
  6. Step 6: Final answer
    x = 463,908.88

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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.