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Finding the Fourth Proportional to 704,536.28, 971,660.41 and 490,188.41

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Solution

The fourth proportional to 704,536.28, 971,660.41 and 490,188.41 is: 676,042.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,536.28 : 971,660.41 = 490,188.41 : x
  2. Step 2: Convert to fraction form
    704,536.28/971,660.41 = 490,188.41/x
  3. Step 3: Cross multiply
    704,536.28x = 971,660.41 × 490,188.41
  4. Step 4: Simplify right side
    704,536.28x = 476,296,668,997.80
  5. Step 5: Solve for x
    x = 476,296,668,997.80/704,536.28
  6. Step 6: Final answer
    x = 676,042.79

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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.