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Finding the Fourth Proportional to 902,349, 1,245,241.62 and 539,788.14

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Solution

The fourth proportional to 902,349, 1,245,241.62 and 539,788.14 is: 744,907.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    902,349 : 1,245,241.62 = 539,788.14 : x
  2. Step 2: Convert to fraction form
    902,349/1,245,241.62 = 539,788.14/x
  3. Step 3: Cross multiply
    902,349x = 1,245,241.62 × 539,788.14
  4. Step 4: Simplify right side
    902,349x = 672,166,657,910.39
  5. Step 5: Solve for x
    x = 672,166,657,910.39/902,349
  6. Step 6: Final answer
    x = 744,907.63

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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.