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Finding the Fourth Proportional to 624,929.22, 862,455.42 and 353,047.03

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Solution

The fourth proportional to 624,929.22, 862,455.42 and 353,047.03 is: 487,234.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,929.22 : 862,455.42 = 353,047.03 : x
  2. Step 2: Convert to fraction form
    624,929.22/862,455.42 = 353,047.03/x
  3. Step 3: Cross multiply
    624,929.22x = 862,455.42 × 353,047.03
  4. Step 4: Simplify right side
    624,929.22x = 304,487,322,382.26
  5. Step 5: Solve for x
    x = 304,487,322,382.26/624,929.22
  6. Step 6: Final answer
    x = 487,234.89

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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.