Home / 394,830.60-544,864.50-213,542.75

Finding the Fourth Proportional to 394,830.60, 544,864.50 and 213,542.75

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Solution

The fourth proportional to 394,830.60, 544,864.50 and 213,542.75 is: 294,688.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,830.60 : 544,864.50 = 213,542.75 : x
  2. Step 2: Convert to fraction form
    394,830.60/544,864.50 = 213,542.75/x
  3. Step 3: Cross multiply
    394,830.60x = 544,864.50 × 213,542.75
  4. Step 4: Simplify right side
    394,830.60x = 116,351,860,983.05
  5. Step 5: Solve for x
    x = 116,351,860,983.05/394,830.60
  6. Step 6: Final answer
    x = 294,688.05

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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.