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Finding the Fourth Proportional to 570,775.70, 856,171.87 and 271,286.82

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Solution

The fourth proportional to 570,775.70, 856,171.87 and 271,286.82 is: 406,934.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,775.70 : 856,171.87 = 271,286.82 : x
  2. Step 2: Convert to fraction form
    570,775.70/856,171.87 = 271,286.82/x
  3. Step 3: Cross multiply
    570,775.70x = 856,171.87 × 271,286.82
  4. Step 4: Simplify right side
    570,775.70x = 232,268,143,985.75
  5. Step 5: Solve for x
    x = 232,268,143,985.75/570,775.70
  6. Step 6: Final answer
    x = 406,934.18

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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.