Home / 1,405,405.63-1,939,460.42-760,825.81

Finding the Fourth Proportional to 1,405,405.63, 1,939,460.42 and 760,825.81

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Solution

The fourth proportional to 1,405,405.63, 1,939,460.42 and 760,825.81 is: 1,049,939.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,405.63 : 1,939,460.42 = 760,825.81 : x
  2. Step 2: Convert to fraction form
    1,405,405.63/1,939,460.42 = 760,825.81/x
  3. Step 3: Cross multiply
    1,405,405.63x = 1,939,460.42 × 760,825.81
  4. Step 4: Simplify right side
    1,405,405.63x = 1,475,591,545,009.44
  5. Step 5: Solve for x
    x = 1,475,591,545,009.44/1,405,405.63
  6. Step 6: Final answer
    x = 1,049,939.97

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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.