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Finding the Fourth Proportional to 548,966.82, 822,879.34 and 212,238.76

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Solution

The fourth proportional to 548,966.82, 822,879.34 and 212,238.76 is: 318,137.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,966.82 : 822,879.34 = 212,238.76 : x
  2. Step 2: Convert to fraction form
    548,966.82/822,879.34 = 212,238.76/x
  3. Step 3: Cross multiply
    548,966.82x = 822,879.34 × 212,238.76
  4. Step 4: Simplify right side
    548,966.82x = 174,646,890,751.22
  5. Step 5: Solve for x
    x = 174,646,890,751.22/548,966.82
  6. Step 6: Final answer
    x = 318,137.43

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1.5x scale

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.