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Finding the Fourth Proportional to 679,181.96, 937,229.94 and 377,365.64

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Solution

The fourth proportional to 679,181.96, 937,229.94 and 377,365.64 is: 520,741.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,181.96 : 937,229.94 = 377,365.64 : x
  2. Step 2: Convert to fraction form
    679,181.96/937,229.94 = 377,365.64/x
  3. Step 3: Cross multiply
    679,181.96x = 937,229.94 × 377,365.64
  4. Step 4: Simplify right side
    679,181.96x = 353,678,376,135.26
  5. Step 5: Solve for x
    x = 353,678,376,135.26/679,181.96
  6. Step 6: Final answer
    x = 520,741.71

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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.