Home / 665,227.56-997,144.38-309,948.60

Finding the Fourth Proportional to 665,227.56, 997,144.38 and 309,948.60

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Solution

The fourth proportional to 665,227.56, 997,144.38 and 309,948.60 is: 464,598.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,227.56 : 997,144.38 = 309,948.60 : x
  2. Step 2: Convert to fraction form
    665,227.56/997,144.38 = 309,948.60/x
  3. Step 3: Cross multiply
    665,227.56x = 997,144.38 × 309,948.60
  4. Step 4: Simplify right side
    665,227.56x = 309,063,504,578.87
  5. Step 5: Solve for x
    x = 309,063,504,578.87/665,227.56
  6. Step 6: Final answer
    x = 464,598.17

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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.