Home / 548,050.72-822,542.64-215,860

Finding the Fourth Proportional to 548,050.72, 822,542.64 and 215,860

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Solution

The fourth proportional to 548,050.72, 822,542.64 and 215,860 is: 323,973.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,050.72 : 822,542.64 = 215,860 : x
  2. Step 2: Convert to fraction form
    548,050.72/822,542.64 = 215,860/x
  3. Step 3: Cross multiply
    548,050.72x = 822,542.64 × 215,860
  4. Step 4: Simplify right side
    548,050.72x = 177,554,054,270.40
  5. Step 5: Solve for x
    x = 177,554,054,270.40/548,050.72
  6. Step 6: Final answer
    x = 323,973.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.