Home / 722,515.80-1,084,388.10-323,770.20

Finding the Fourth Proportional to 722,515.80, 1,084,388.10 and 323,770.20

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Solution

The fourth proportional to 722,515.80, 1,084,388.10 and 323,770.20 is: 485,930.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,515.80 : 1,084,388.10 = 323,770.20 : x
  2. Step 2: Convert to fraction form
    722,515.80/1,084,388.10 = 323,770.20/x
  3. Step 3: Cross multiply
    722,515.80x = 1,084,388.10 × 323,770.20
  4. Step 4: Simplify right side
    722,515.80x = 351,092,552,014.62
  5. Step 5: Solve for x
    x = 351,092,552,014.62/722,515.80
  6. Step 6: Final answer
    x = 485,930.62

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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.