Home / 412,185.06-571,725.50-401,259.78

Finding the Fourth Proportional to 412,185.06, 571,725.50 and 401,259.78

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Solution

The fourth proportional to 412,185.06, 571,725.50 and 401,259.78 is: 556,571.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,185.06 : 571,725.50 = 401,259.78 : x
  2. Step 2: Convert to fraction form
    412,185.06/571,725.50 = 401,259.78/x
  3. Step 3: Cross multiply
    412,185.06x = 571,725.50 × 401,259.78
  4. Step 4: Simplify right side
    412,185.06x = 229,410,446,344.09
  5. Step 5: Solve for x
    x = 229,410,446,344.09/412,185.06
  6. Step 6: Final answer
    x = 556,571.47

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.