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Finding the Fourth Proportional to 482,998.72, 666,540.57 and 301,815.88

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Solution

The fourth proportional to 482,998.72, 666,540.57 and 301,815.88 is: 416,507.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,998.72 : 666,540.57 = 301,815.88 : x
  2. Step 2: Convert to fraction form
    482,998.72/666,540.57 = 301,815.88/x
  3. Step 3: Cross multiply
    482,998.72x = 666,540.57 × 301,815.88
  4. Step 4: Simplify right side
    482,998.72x = 201,172,528,690.25
  5. Step 5: Solve for x
    x = 201,172,528,690.25/482,998.72
  6. Step 6: Final answer
    x = 416,507.37

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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.