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Finding the Fourth Proportional to 881,999.40, 1,322,999.10 and 756,028.20

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Solution

The fourth proportional to 881,999.40, 1,322,999.10 and 756,028.20 is: 1,134,042.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,999.40 : 1,322,999.10 = 756,028.20 : x
  2. Step 2: Convert to fraction form
    881,999.40/1,322,999.10 = 756,028.20/x
  3. Step 3: Cross multiply
    881,999.40x = 1,322,999.10 × 756,028.20
  4. Step 4: Simplify right side
    881,999.40x = 1,000,224,628,174.62
  5. Step 5: Solve for x
    x = 1,000,224,628,174.62/881,999.40
  6. Step 6: Final answer
    x = 1,134,042.30

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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.