Home / 1,455,741.12-2,008,902.42-811,188.48

Finding the Fourth Proportional to 1,455,741.12, 2,008,902.42 and 811,188.48

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Solution

The fourth proportional to 1,455,741.12, 2,008,902.42 and 811,188.48 is: 1,119,428.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,455,741.12 : 2,008,902.42 = 811,188.48 : x
  2. Step 2: Convert to fraction form
    1,455,741.12/2,008,902.42 = 811,188.48/x
  3. Step 3: Cross multiply
    1,455,741.12x = 2,008,902.42 × 811,188.48
  4. Step 4: Simplify right side
    1,455,741.12x = 1,629,598,500,548.12
  5. Step 5: Solve for x
    x = 1,629,598,500,548.12/1,455,741.12
  6. Step 6: Final answer
    x = 1,119,428.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.