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Finding the Fourth Proportional to 662,951.28, 994,402 and 394,934.44

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Solution

The fourth proportional to 662,951.28, 994,402 and 394,934.44 is: 592,386.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,951.28 : 994,402 = 394,934.44 : x
  2. Step 2: Convert to fraction form
    662,951.28/994,402 = 394,934.44/x
  3. Step 3: Cross multiply
    662,951.28x = 994,402 × 394,934.44
  4. Step 4: Simplify right side
    662,951.28x = 392,723,597,004.88
  5. Step 5: Solve for x
    x = 392,723,597,004.88/662,951.28
  6. Step 6: Final answer
    x = 592,386.81

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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.