Home / 591,138.60-886,535.10-212,015.40

Finding the Fourth Proportional to 591,138.60, 886,535.10 and 212,015.40

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Solution

The fourth proportional to 591,138.60, 886,535.10 and 212,015.40 is: 317,961.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,138.60 : 886,535.10 = 212,015.40 : x
  2. Step 2: Convert to fraction form
    591,138.60/886,535.10 = 212,015.40/x
  3. Step 3: Cross multiply
    591,138.60x = 886,535.10 × 212,015.40
  4. Step 4: Simplify right side
    591,138.60x = 187,959,093,840.54
  5. Step 5: Solve for x
    x = 187,959,093,840.54/591,138.60
  6. Step 6: Final answer
    x = 317,961.12

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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.