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Finding the Fourth Proportional to 807,724.80, 1,208,962.80 and 629,265.60

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Solution

The fourth proportional to 807,724.80, 1,208,962.80 and 629,265.60 is: 941,853.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,724.80 : 1,208,962.80 = 629,265.60 : x
  2. Step 2: Convert to fraction form
    807,724.80/1,208,962.80 = 629,265.60/x
  3. Step 3: Cross multiply
    807,724.80x = 1,208,962.80 × 629,265.60
  4. Step 4: Simplify right side
    807,724.80x = 760,758,701,719.68
  5. Step 5: Solve for x
    x = 760,758,701,719.68/807,724.80
  6. Step 6: Final answer
    x = 941,853.84

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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.