Home / 744,991.20-1,117,660.32-212,519.52

Finding the Fourth Proportional to 744,991.20, 1,117,660.32 and 212,519.52

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Solution

The fourth proportional to 744,991.20, 1,117,660.32 and 212,519.52 is: 318,828.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,991.20 : 1,117,660.32 = 212,519.52 : x
  2. Step 2: Convert to fraction form
    744,991.20/1,117,660.32 = 212,519.52/x
  3. Step 3: Cross multiply
    744,991.20x = 1,117,660.32 × 212,519.52
  4. Step 4: Simplify right side
    744,991.20x = 237,524,634,729.45
  5. Step 5: Solve for x
    x = 237,524,634,729.45/744,991.20
  6. Step 6: Final answer
    x = 318,828.78

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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.