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Finding the Fourth Proportional to 800,697.50, 1,201,322.99 and 500,820.78

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Solution

The fourth proportional to 800,697.50, 1,201,322.99 and 500,820.78 is: 751,404.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,697.50 : 1,201,322.99 = 500,820.78 : x
  2. Step 2: Convert to fraction form
    800,697.50/1,201,322.99 = 500,820.78/x
  3. Step 3: Cross multiply
    800,697.50x = 1,201,322.99 × 500,820.78
  4. Step 4: Simplify right side
    800,697.50x = 601,647,518,135.78
  5. Step 5: Solve for x
    x = 601,647,518,135.78/800,697.50
  6. Step 6: Final answer
    x = 751,404.27

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.