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Finding the Fourth Proportional to 678,502.44, 936,296.82 and 376,677

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Solution

The fourth proportional to 678,502.44, 936,296.82 and 376,677 is: 519,793.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,502.44 : 936,296.82 = 376,677 : x
  2. Step 2: Convert to fraction form
    678,502.44/936,296.82 = 376,677/x
  3. Step 3: Cross multiply
    678,502.44x = 936,296.82 × 376,677
  4. Step 4: Simplify right side
    678,502.44x = 352,681,477,267.14
  5. Step 5: Solve for x
    x = 352,681,477,267.14/678,502.44
  6. Step 6: Final answer
    x = 519,793.97

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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.