Home / 843,556.88-1,265,241.72-212,470.64

Finding the Fourth Proportional to 843,556.88, 1,265,241.72 and 212,470.64

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Solution

The fourth proportional to 843,556.88, 1,265,241.72 and 212,470.64 is: 318,682.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    843,556.88 : 1,265,241.72 = 212,470.64 : x
  2. Step 2: Convert to fraction form
    843,556.88/1,265,241.72 = 212,470.64/x
  3. Step 3: Cross multiply
    843,556.88x = 1,265,241.72 × 212,470.64
  4. Step 4: Simplify right side
    843,556.88x = 268,826,718,003.10
  5. Step 5: Solve for x
    x = 268,826,718,003.10/843,556.88
  6. Step 6: Final answer
    x = 318,682.38

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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.