Home / 881,110.64-1,215,992.78-499,140.56

Finding the Fourth Proportional to 881,110.64, 1,215,992.78 and 499,140.56

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Solution

The fourth proportional to 881,110.64, 1,215,992.78 and 499,140.56 is: 688,848.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,110.64 : 1,215,992.78 = 499,140.56 : x
  2. Step 2: Convert to fraction form
    881,110.64/1,215,992.78 = 499,140.56/x
  3. Step 3: Cross multiply
    881,110.64x = 1,215,992.78 × 499,140.56
  4. Step 4: Simplify right side
    881,110.64x = 606,951,317,165.16
  5. Step 5: Solve for x
    x = 606,951,317,165.16/881,110.64
  6. Step 6: Final answer
    x = 688,848.02

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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.