Home / 1,198,645.20-1,797,955.47-692,884.40

Finding the Fourth Proportional to 1,198,645.20, 1,797,955.47 and 692,884.40

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Solution

The fourth proportional to 1,198,645.20, 1,797,955.47 and 692,884.40 is: 1,039,319.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,198,645.20 : 1,797,955.47 = 692,884.40 : x
  2. Step 2: Convert to fraction form
    1,198,645.20/1,797,955.47 = 692,884.40/x
  3. Step 3: Cross multiply
    1,198,645.20x = 1,797,955.47 × 692,884.40
  4. Step 4: Simplify right side
    1,198,645.20x = 1,245,775,288,067.89
  5. Step 5: Solve for x
    x = 1,245,775,288,067.89/1,198,645.20
  6. Step 6: Final answer
    x = 1,039,319.47

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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.