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Finding the Fourth Proportional to 389,664.60, 584,496.90 and 332,583.90

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Solution

The fourth proportional to 389,664.60, 584,496.90 and 332,583.90 is: 498,875.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,664.60 : 584,496.90 = 332,583.90 : x
  2. Step 2: Convert to fraction form
    389,664.60/584,496.90 = 332,583.90/x
  3. Step 3: Cross multiply
    389,664.60x = 584,496.90 × 332,583.90
  4. Step 4: Simplify right side
    389,664.60x = 194,394,258,539.91
  5. Step 5: Solve for x
    x = 194,394,258,539.91/389,664.60
  6. Step 6: Final answer
    x = 498,875.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.