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Finding the Fourth Proportional to 635,032.50, 876,313.11 and 376,920.66

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Solution

The fourth proportional to 635,032.50, 876,313.11 and 376,920.66 is: 520,131.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,032.50 : 876,313.11 = 376,920.66 : x
  2. Step 2: Convert to fraction form
    635,032.50/876,313.11 = 376,920.66/x
  3. Step 3: Cross multiply
    635,032.50x = 876,313.11 × 376,920.66
  4. Step 4: Simplify right side
    635,032.50x = 330,300,515,787.85
  5. Step 5: Solve for x
    x = 330,300,515,787.85/635,032.50
  6. Step 6: Final answer
    x = 520,131.67

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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.