Home / 1,208,938.29-1,668,268.94-664,986.26

Finding the Fourth Proportional to 1,208,938.29, 1,668,268.94 and 664,986.26

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Solution

The fourth proportional to 1,208,938.29, 1,668,268.94 and 664,986.26 is: 917,644.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,938.29 : 1,668,268.94 = 664,986.26 : x
  2. Step 2: Convert to fraction form
    1,208,938.29/1,668,268.94 = 664,986.26/x
  3. Step 3: Cross multiply
    1,208,938.29x = 1,668,268.94 × 664,986.26
  4. Step 4: Simplify right side
    1,208,938.29x = 1,109,375,911,418.49
  5. Step 5: Solve for x
    x = 1,109,375,911,418.49/1,208,938.29
  6. Step 6: Final answer
    x = 917,644.78

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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.