Home / 843,671.30-1,265,515.14-212,585.11

Finding the Fourth Proportional to 843,671.30, 1,265,515.14 and 212,585.11

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Solution

The fourth proportional to 843,671.30, 1,265,515.14 and 212,585.11 is: 318,879.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    843,671.30 : 1,265,515.14 = 212,585.11 : x
  2. Step 2: Convert to fraction form
    843,671.30/1,265,515.14 = 212,585.11/x
  3. Step 3: Cross multiply
    843,671.30x = 1,265,515.14 × 212,585.11
  4. Step 4: Simplify right side
    843,671.30x = 269,029,672,876.97
  5. Step 5: Solve for x
    x = 269,029,672,876.97/843,671.30
  6. Step 6: Final answer
    x = 318,879.73

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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.