Home / 723,942.54-999,021.67-397,254.56

Finding the Fourth Proportional to 723,942.54, 999,021.67 and 397,254.56

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Solution

The fourth proportional to 723,942.54, 999,021.67 and 397,254.56 is: 548,200.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,942.54 : 999,021.67 = 397,254.56 : x
  2. Step 2: Convert to fraction form
    723,942.54/999,021.67 = 397,254.56/x
  3. Step 3: Cross multiply
    723,942.54x = 999,021.67 × 397,254.56
  4. Step 4: Simplify right side
    723,942.54x = 396,865,907,958.07
  5. Step 5: Solve for x
    x = 396,865,907,958.07/723,942.54
  6. Step 6: Final answer
    x = 548,200.84

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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.