Home / 1,186,757.48-1,780,245.66-388,043.12

Finding the Fourth Proportional to 1,186,757.48, 1,780,245.66 and 388,043.12

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Solution

The fourth proportional to 1,186,757.48, 1,780,245.66 and 388,043.12 is: 582,100.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,757.48 : 1,780,245.66 = 388,043.12 : x
  2. Step 2: Convert to fraction form
    1,186,757.48/1,780,245.66 = 388,043.12/x
  3. Step 3: Cross multiply
    1,186,757.48x = 1,780,245.66 × 388,043.12
  4. Step 4: Simplify right side
    1,186,757.48x = 690,812,080,272.86
  5. Step 5: Solve for x
    x = 690,812,080,272.86/1,186,757.48
  6. Step 6: Final answer
    x = 582,100.46

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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.