Home / 667,115.38-1,000,700.78-193,800.74

Finding the Fourth Proportional to 667,115.38, 1,000,700.78 and 193,800.74

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Solution

The fourth proportional to 667,115.38, 1,000,700.78 and 193,800.74 is: 290,709.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,115.38 : 1,000,700.78 = 193,800.74 : x
  2. Step 2: Convert to fraction form
    667,115.38/1,000,700.78 = 193,800.74/x
  3. Step 3: Cross multiply
    667,115.38x = 1,000,700.78 × 193,800.74
  4. Step 4: Simplify right side
    667,115.38x = 193,936,552,429.14
  5. Step 5: Solve for x
    x = 193,936,552,429.14/667,115.38
  6. Step 6: Final answer
    x = 290,709.16

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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.