Home / 855,138.80-1,281,906.30-323,017.40

Finding the Fourth Proportional to 855,138.80, 1,281,906.30 and 323,017.40

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Solution

The fourth proportional to 855,138.80, 1,281,906.30 and 323,017.40 is: 484,223.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,138.80 : 1,281,906.30 = 323,017.40 : x
  2. Step 2: Convert to fraction form
    855,138.80/1,281,906.30 = 323,017.40/x
  3. Step 3: Cross multiply
    855,138.80x = 1,281,906.30 × 323,017.40
  4. Step 4: Simplify right side
    855,138.80x = 414,078,040,069.62
  5. Step 5: Solve for x
    x = 414,078,040,069.62/855,138.80
  6. Step 6: Final answer
    x = 484,223.19

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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.