Home / 1,405,361.26-1,939,389.80-760,776.80

Finding the Fourth Proportional to 1,405,361.26, 1,939,389.80 and 760,776.80

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Solution

The fourth proportional to 1,405,361.26, 1,939,389.80 and 760,776.80 is: 1,049,867.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,361.26 : 1,939,389.80 = 760,776.80 : x
  2. Step 2: Convert to fraction form
    1,405,361.26/1,939,389.80 = 760,776.80/x
  3. Step 3: Cross multiply
    1,405,361.26x = 1,939,389.80 × 760,776.80
  4. Step 4: Simplify right side
    1,405,361.26x = 1,475,442,758,201.63
  5. Step 5: Solve for x
    x = 1,475,442,758,201.63/1,405,361.26
  6. Step 6: Final answer
    x = 1,049,867.25

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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.