Home / 680,906.40-1,021,578.30-301,680.60

Finding the Fourth Proportional to 680,906.40, 1,021,578.30 and 301,680.60

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Solution

The fourth proportional to 680,906.40, 1,021,578.30 and 301,680.60 is: 452,617.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,906.40 : 1,021,578.30 = 301,680.60 : x
  2. Step 2: Convert to fraction form
    680,906.40/1,021,578.30 = 301,680.60/x
  3. Step 3: Cross multiply
    680,906.40x = 1,021,578.30 × 301,680.60
  4. Step 4: Simplify right side
    680,906.40x = 308,190,354,490.98
  5. Step 5: Solve for x
    x = 308,190,354,490.98/680,906.40
  6. Step 6: Final answer
    x = 452,617.80

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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.