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Finding the Fourth Proportional to 540,822.79, 810,662.11 and 203,717.58

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Solution

The fourth proportional to 540,822.79, 810,662.11 and 203,717.58 is: 305,360.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,822.79 : 810,662.11 = 203,717.58 : x
  2. Step 2: Convert to fraction form
    540,822.79/810,662.11 = 203,717.58/x
  3. Step 3: Cross multiply
    540,822.79x = 810,662.11 × 203,717.58
  4. Step 4: Simplify right side
    540,822.79x = 165,146,123,246.89
  5. Step 5: Solve for x
    x = 165,146,123,246.89/540,822.79
  6. Step 6: Final answer
    x = 305,360.88

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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.