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Finding the Fourth Proportional to 394,952.73, 592,490.58 and 128,651.32

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Solution

The fourth proportional to 394,952.73, 592,490.58 and 128,651.32 is: 192,997.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,952.73 : 592,490.58 = 128,651.32 : x
  2. Step 2: Convert to fraction form
    394,952.73/592,490.58 = 128,651.32/x
  3. Step 3: Cross multiply
    394,952.73x = 592,490.58 × 128,651.32
  4. Step 4: Simplify right side
    394,952.73x = 76,224,695,204.57
  5. Step 5: Solve for x
    x = 76,224,695,204.57/394,952.73
  6. Step 6: Final answer
    x = 192,997.01

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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.