Home / 785,790.38-1,178,049.86-245,768.82

Finding the Fourth Proportional to 785,790.38, 1,178,049.86 and 245,768.82

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Solution

The fourth proportional to 785,790.38, 1,178,049.86 and 245,768.82 is: 368,454.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,790.38 : 1,178,049.86 = 245,768.82 : x
  2. Step 2: Convert to fraction form
    785,790.38/1,178,049.86 = 245,768.82/x
  3. Step 3: Cross multiply
    785,790.38x = 1,178,049.86 × 245,768.82
  4. Step 4: Simplify right side
    785,790.38x = 289,527,919,268.47
  5. Step 5: Solve for x
    x = 289,527,919,268.47/785,790.38
  6. Step 6: Final answer
    x = 368,454.39

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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.