Home / 990,559.78-1,485,843.30-242,605.78

Finding the Fourth Proportional to 990,559.78, 1,485,843.30 and 242,605.78

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Solution

The fourth proportional to 990,559.78, 1,485,843.30 and 242,605.78 is: 363,909.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,559.78 : 1,485,843.30 = 242,605.78 : x
  2. Step 2: Convert to fraction form
    990,559.78/1,485,843.30 = 242,605.78/x
  3. Step 3: Cross multiply
    990,559.78x = 1,485,843.30 × 242,605.78
  4. Step 4: Simplify right side
    990,559.78x = 360,474,172,754.27
  5. Step 5: Solve for x
    x = 360,474,172,754.27/990,559.78
  6. Step 6: Final answer
    x = 363,909.56

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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.