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Finding the Fourth Proportional to 624,992.49, 862,542.68 and 353,110.32

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Solution

The fourth proportional to 624,992.49, 862,542.68 and 353,110.32 is: 487,322.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,992.49 : 862,542.68 = 353,110.32 : x
  2. Step 2: Convert to fraction form
    624,992.49/862,542.68 = 353,110.32/x
  3. Step 3: Cross multiply
    624,992.49x = 862,542.68 × 353,110.32
  4. Step 4: Simplify right side
    624,992.49x = 304,572,719,982.91
  5. Step 5: Solve for x
    x = 304,572,719,982.91/624,992.49
  6. Step 6: Final answer
    x = 487,322.21

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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.