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Finding the Fourth Proportional to 627,090.75, 940,630.89 and 372,686.43

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Solution

The fourth proportional to 627,090.75, 940,630.89 and 372,686.43 is: 559,026.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,090.75 : 940,630.89 = 372,686.43 : x
  2. Step 2: Convert to fraction form
    627,090.75/940,630.89 = 372,686.43/x
  3. Step 3: Cross multiply
    627,090.75x = 940,630.89 × 372,686.43
  4. Step 4: Simplify right side
    627,090.75x = 350,560,368,341.82
  5. Step 5: Solve for x
    x = 350,560,368,341.82/627,090.75
  6. Step 6: Final answer
    x = 559,026.53

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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.