Home / 1,266,467.51-1,747,725.89-685,690.75

Finding the Fourth Proportional to 1,266,467.51, 1,747,725.89 and 685,690.75

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Solution

The fourth proportional to 1,266,467.51, 1,747,725.89 and 685,690.75 is: 946,253.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,266,467.51 : 1,747,725.89 = 685,690.75 : x
  2. Step 2: Convert to fraction form
    1,266,467.51/1,747,725.89 = 685,690.75/x
  3. Step 3: Cross multiply
    1,266,467.51x = 1,747,725.89 × 685,690.75
  4. Step 4: Simplify right side
    1,266,467.51x = 1,198,399,484,127.22
  5. Step 5: Solve for x
    x = 1,198,399,484,127.22/1,266,467.51
  6. Step 6: Final answer
    x = 946,253.63

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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.