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Finding the Fourth Proportional to 448,992.31, 620,284.15 and 294,310.75

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Solution

The fourth proportional to 448,992.31, 620,284.15 and 294,310.75 is: 406,591.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,992.31 : 620,284.15 = 294,310.75 : x
  2. Step 2: Convert to fraction form
    448,992.31/620,284.15 = 294,310.75/x
  3. Step 3: Cross multiply
    448,992.31x = 620,284.15 × 294,310.75
  4. Step 4: Simplify right side
    448,992.31x = 182,556,293,399.61
  5. Step 5: Solve for x
    x = 182,556,293,399.61/448,992.31
  6. Step 6: Final answer
    x = 406,591.14

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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.