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Finding the Fourth Proportional to 611,996.73, 844,538.70 and 340,057.64

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Solution

The fourth proportional to 611,996.73, 844,538.70 and 340,057.64 is: 469,270.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,996.73 : 844,538.70 = 340,057.64 : x
  2. Step 2: Convert to fraction form
    611,996.73/844,538.70 = 340,057.64/x
  3. Step 3: Cross multiply
    611,996.73x = 844,538.70 × 340,057.64
  4. Step 4: Simplify right side
    611,996.73x = 287,191,840,597.23
  5. Step 5: Solve for x
    x = 287,191,840,597.23/611,996.73
  6. Step 6: Final answer
    x = 469,270.22

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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.