Home / 809,261.20-1,213,891.80-510,079.60

Finding the Fourth Proportional to 809,261.20, 1,213,891.80 and 510,079.60

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Solution

The fourth proportional to 809,261.20, 1,213,891.80 and 510,079.60 is: 765,119.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,261.20 : 1,213,891.80 = 510,079.60 : x
  2. Step 2: Convert to fraction form
    809,261.20/1,213,891.80 = 510,079.60/x
  3. Step 3: Cross multiply
    809,261.20x = 1,213,891.80 × 510,079.60
  4. Step 4: Simplify right side
    809,261.20x = 619,181,443,787.28
  5. Step 5: Solve for x
    x = 619,181,443,787.28/809,261.20
  6. Step 6: Final answer
    x = 765,119.40

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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.