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Finding the Fourth Proportional to 414,174.30, 620,350.82 and 342,282.14

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Solution

The fourth proportional to 414,174.30, 620,350.82 and 342,282.14 is: 512,670.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,174.30 : 620,350.82 = 342,282.14 : x
  2. Step 2: Convert to fraction form
    414,174.30/620,350.82 = 342,282.14/x
  3. Step 3: Cross multiply
    414,174.30x = 620,350.82 × 342,282.14
  4. Step 4: Simplify right side
    414,174.30x = 212,335,006,220.36
  5. Step 5: Solve for x
    x = 212,335,006,220.36/414,174.30
  6. Step 6: Final answer
    x = 512,670.65

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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.