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Finding the Fourth Proportional to 394,712.98, 544,704.29 and 213,424.86

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Solution

The fourth proportional to 394,712.98, 544,704.29 and 213,424.86 is: 294,526.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,712.98 : 544,704.29 = 213,424.86 : x
  2. Step 2: Convert to fraction form
    394,712.98/544,704.29 = 213,424.86/x
  3. Step 3: Cross multiply
    394,712.98x = 544,704.29 × 213,424.86
  4. Step 4: Simplify right side
    394,712.98x = 116,253,433,044.00
  5. Step 5: Solve for x
    x = 116,253,433,044.00/394,712.98
  6. Step 6: Final answer
    x = 294,526.51

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1.5x scale

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.