Home / 843,666.80-1,265,508.39-212,580.61

Finding the Fourth Proportional to 843,666.80, 1,265,508.39 and 212,580.61

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Solution

The fourth proportional to 843,666.80, 1,265,508.39 and 212,580.61 is: 318,872.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    843,666.80 : 1,265,508.39 = 212,580.61 : x
  2. Step 2: Convert to fraction form
    843,666.80/1,265,508.39 = 212,580.61/x
  3. Step 3: Cross multiply
    843,666.80x = 1,265,508.39 × 212,580.61
  4. Step 4: Simplify right side
    843,666.80x = 269,022,543,139.72
  5. Step 5: Solve for x
    x = 269,022,543,139.72/843,666.80
  6. Step 6: Final answer
    x = 318,872.98

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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.