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Finding the Fourth Proportional to 476,967.66, 658,071.82 and 285,911.34

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Solution

The fourth proportional to 476,967.66, 658,071.82 and 285,911.34 is: 394,471.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,967.66 : 658,071.82 = 285,911.34 : x
  2. Step 2: Convert to fraction form
    476,967.66/658,071.82 = 285,911.34/x
  3. Step 3: Cross multiply
    476,967.66x = 658,071.82 × 285,911.34
  4. Step 4: Simplify right side
    476,967.66x = 188,150,195,872.44
  5. Step 5: Solve for x
    x = 188,150,195,872.44/476,967.66
  6. Step 6: Final answer
    x = 394,471.60

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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.