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Finding the Fourth Proportional to 647,732.22, 893,872.05 and 361,270.86

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Solution

The fourth proportional to 647,732.22, 893,872.05 and 361,270.86 is: 498,554.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,732.22 : 893,872.05 = 361,270.86 : x
  2. Step 2: Convert to fraction form
    647,732.22/893,872.05 = 361,270.86/x
  3. Step 3: Cross multiply
    647,732.22x = 893,872.05 × 361,270.86
  4. Step 4: Simplify right side
    647,732.22x = 322,929,924,233.46
  5. Step 5: Solve for x
    x = 322,929,924,233.46/647,732.22
  6. Step 6: Final answer
    x = 498,554.67

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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.