Home / 1,405,379.09-1,939,422.74-760,798.81

Finding the Fourth Proportional to 1,405,379.09, 1,939,422.74 and 760,798.81

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Solution

The fourth proportional to 1,405,379.09, 1,939,422.74 and 760,798.81 is: 1,049,902.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,379.09 : 1,939,422.74 = 760,798.81 : x
  2. Step 2: Convert to fraction form
    1,405,379.09/1,939,422.74 = 760,798.81/x
  3. Step 3: Cross multiply
    1,405,379.09x = 1,939,422.74 × 760,798.81
  4. Step 4: Simplify right side
    1,405,379.09x = 1,475,510,515,578.72
  5. Step 5: Solve for x
    x = 1,475,510,515,578.72/1,405,379.09
  6. Step 6: Final answer
    x = 1,049,902.14

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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.