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Finding the Fourth Proportional to 426,179.96, 588,349.44 and 311,329.64

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Solution

The fourth proportional to 426,179.96, 588,349.44 and 311,329.64 is: 429,796.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,179.96 : 588,349.44 = 311,329.64 : x
  2. Step 2: Convert to fraction form
    426,179.96/588,349.44 = 311,329.64/x
  3. Step 3: Cross multiply
    426,179.96x = 588,349.44 × 311,329.64
  4. Step 4: Simplify right side
    426,179.96x = 183,170,619,349.40
  5. Step 5: Solve for x
    x = 183,170,619,349.40/426,179.96
  6. Step 6: Final answer
    x = 429,796.42

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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.