Home / 1,296,645.12-1,945,036.80-410,112

Finding the Fourth Proportional to 1,296,645.12, 1,945,036.80 and 410,112

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Solution

The fourth proportional to 1,296,645.12, 1,945,036.80 and 410,112 is: 615,189.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,645.12 : 1,945,036.80 = 410,112 : x
  2. Step 2: Convert to fraction form
    1,296,645.12/1,945,036.80 = 410,112/x
  3. Step 3: Cross multiply
    1,296,645.12x = 1,945,036.80 × 410,112
  4. Step 4: Simplify right side
    1,296,645.12x = 797,682,932,121.60
  5. Step 5: Solve for x
    x = 797,682,932,121.60/1,296,645.12
  6. Step 6: Final answer
    x = 615,189.86

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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.