Home / 843,667.80-1,265,509.89-212,581.61

Finding the Fourth Proportional to 843,667.80, 1,265,509.89 and 212,581.61

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Solution

The fourth proportional to 843,667.80, 1,265,509.89 and 212,581.61 is: 318,874.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    843,667.80 : 1,265,509.89 = 212,581.61 : x
  2. Step 2: Convert to fraction form
    843,667.80/1,265,509.89 = 212,581.61/x
  3. Step 3: Cross multiply
    843,667.80x = 1,265,509.89 × 212,581.61
  4. Step 4: Simplify right side
    843,667.80x = 269,024,129,887.12
  5. Step 5: Solve for x
    x = 269,024,129,887.12/843,667.80
  6. Step 6: Final answer
    x = 318,874.48

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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.