Home / 1,405,388.25-1,939,435.38-760,807.97

Finding the Fourth Proportional to 1,405,388.25, 1,939,435.38 and 760,807.97

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Solution

The fourth proportional to 1,405,388.25, 1,939,435.38 and 760,807.97 is: 1,049,914.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,388.25 : 1,939,435.38 = 760,807.97 : x
  2. Step 2: Convert to fraction form
    1,405,388.25/1,939,435.38 = 760,807.97/x
  3. Step 3: Cross multiply
    1,405,388.25x = 1,939,435.38 × 760,807.97
  4. Step 4: Simplify right side
    1,405,388.25x = 1,475,537,894,403.98
  5. Step 5: Solve for x
    x = 1,475,537,894,403.98/1,405,388.25
  6. Step 6: Final answer
    x = 1,049,914.78

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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.