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Finding the Fourth Proportional to 628,297.49, 941,790.02 and 308,005.88

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Solution

The fourth proportional to 628,297.49, 941,790.02 and 308,005.88 is: 461,687.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,297.49 : 941,790.02 = 308,005.88 : x
  2. Step 2: Convert to fraction form
    628,297.49/941,790.02 = 308,005.88/x
  3. Step 3: Cross multiply
    628,297.49x = 941,790.02 × 308,005.88
  4. Step 4: Simplify right side
    628,297.49x = 290,076,857,636.34
  5. Step 5: Solve for x
    x = 290,076,857,636.34/628,297.49
  6. Step 6: Final answer
    x = 461,687.12

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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.