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Finding the Fourth Proportional to 611,773.98, 844,383.02 and 339,935.28

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Solution

The fourth proportional to 611,773.98, 844,383.02 and 339,935.28 is: 469,185.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,773.98 : 844,383.02 = 339,935.28 : x
  2. Step 2: Convert to fraction form
    611,773.98/844,383.02 = 339,935.28/x
  3. Step 3: Cross multiply
    611,773.98x = 844,383.02 × 339,935.28
  4. Step 4: Simplify right side
    611,773.98x = 287,035,578,330.95
  5. Step 5: Solve for x
    x = 287,035,578,330.95/611,773.98
  6. Step 6: Final answer
    x = 469,185.66

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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.