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Finding the Fourth Proportional to 628,298.49, 941,791.51 and 308,006.88

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Solution

The fourth proportional to 628,298.49, 941,791.51 and 308,006.88 is: 461,688.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,298.49 : 941,791.51 = 308,006.88 : x
  2. Step 2: Convert to fraction form
    628,298.49/941,791.51 = 308,006.88/x
  3. Step 3: Cross multiply
    628,298.49x = 941,791.51 × 308,006.88
  4. Step 4: Simplify right side
    628,298.49x = 290,078,264,605.59
  5. Step 5: Solve for x
    x = 290,078,264,605.59/628,298.49
  6. Step 6: Final answer
    x = 461,688.62

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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.