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Finding the Fourth Proportional to 700,659.52, 966,709.89 and 394,628.96

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Solution

The fourth proportional to 700,659.52, 966,709.89 and 394,628.96 is: 544,475.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,659.52 : 966,709.89 = 394,628.96 : x
  2. Step 2: Convert to fraction form
    700,659.52/966,709.89 = 394,628.96/x
  3. Step 3: Cross multiply
    700,659.52x = 966,709.89 × 394,628.96
  4. Step 4: Simplify right side
    700,659.52x = 381,491,720,929.19
  5. Step 5: Solve for x
    x = 381,491,720,929.19/700,659.52
  6. Step 6: Final answer
    x = 544,475.19

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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.