Home / 548,968.46-822,881.78-212,240.38

Finding the Fourth Proportional to 548,968.46, 822,881.78 and 212,240.38

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Solution

The fourth proportional to 548,968.46, 822,881.78 and 212,240.38 is: 318,139.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,968.46 : 822,881.78 = 212,240.38 : x
  2. Step 2: Convert to fraction form
    548,968.46/822,881.78 = 212,240.38/x
  3. Step 3: Cross multiply
    548,968.46x = 822,881.78 × 212,240.38
  4. Step 4: Simplify right side
    548,968.46x = 174,648,741,682.28
  5. Step 5: Solve for x
    x = 174,648,741,682.28/548,968.46
  6. Step 6: Final answer
    x = 318,139.85

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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.