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Finding the Fourth Proportional to 704,202.26, 971,851.29 and 394,135.86

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Solution

The fourth proportional to 704,202.26, 971,851.29 and 394,135.86 is: 543,936.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,202.26 : 971,851.29 = 394,135.86 : x
  2. Step 2: Convert to fraction form
    704,202.26/971,851.29 = 394,135.86/x
  3. Step 3: Cross multiply
    704,202.26x = 971,851.29 × 394,135.86
  4. Step 4: Simplify right side
    704,202.26x = 383,041,444,001.55
  5. Step 5: Solve for x
    x = 383,041,444,001.55/704,202.26
  6. Step 6: Final answer
    x = 543,936.68

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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.