Home / 800,490.62-1,200,735.93-379,536.86

Finding the Fourth Proportional to 800,490.62, 1,200,735.93 and 379,536.86

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Solution

The fourth proportional to 800,490.62, 1,200,735.93 and 379,536.86 is: 569,305.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,490.62 : 1,200,735.93 = 379,536.86 : x
  2. Step 2: Convert to fraction form
    800,490.62/1,200,735.93 = 379,536.86/x
  3. Step 3: Cross multiply
    800,490.62x = 1,200,735.93 × 379,536.86
  4. Step 4: Simplify right side
    800,490.62x = 455,723,544,561.38
  5. Step 5: Solve for x
    x = 455,723,544,561.38/800,490.62
  6. Step 6: Final answer
    x = 569,305.29

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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.