Home / 548,840.32-822,787.30-212,117.20

Finding the Fourth Proportional to 548,840.32, 822,787.30 and 212,117.20

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Solution

The fourth proportional to 548,840.32, 822,787.30 and 212,117.20 is: 317,992.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,840.32 : 822,787.30 = 212,117.20 : x
  2. Step 2: Convert to fraction form
    548,840.32/822,787.30 = 212,117.20/x
  3. Step 3: Cross multiply
    548,840.32x = 822,787.30 × 212,117.20
  4. Step 4: Simplify right side
    548,840.32x = 174,527,338,271.56
  5. Step 5: Solve for x
    x = 174,527,338,271.56/548,840.32
  6. Step 6: Final answer
    x = 317,992.92

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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.