Home / 1,405,447.38-1,939,518.09-760,867.56

Finding the Fourth Proportional to 1,405,447.38, 1,939,518.09 and 760,867.56

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Solution

The fourth proportional to 1,405,447.38, 1,939,518.09 and 760,867.56 is: 1,049,997.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,447.38 : 1,939,518.09 = 760,867.56 : x
  2. Step 2: Convert to fraction form
    1,405,447.38/1,939,518.09 = 760,867.56/x
  3. Step 3: Cross multiply
    1,405,447.38x = 1,939,518.09 × 760,867.56
  4. Step 4: Simplify right side
    1,405,447.38x = 1,475,716,396,714.16
  5. Step 5: Solve for x
    x = 1,475,716,396,714.16/1,405,447.38
  6. Step 6: Final answer
    x = 1,049,997.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.