Home / 2,178,107.19-3,005,347.44-1,272,514.23

Finding the Fourth Proportional to 2,178,107.19, 3,005,347.44 and 1,272,514.23

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Solution

The fourth proportional to 2,178,107.19, 3,005,347.44 and 1,272,514.23 is: 1,755,812.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,178,107.19 : 3,005,347.44 = 1,272,514.23 : x
  2. Step 2: Convert to fraction form
    2,178,107.19/3,005,347.44 = 1,272,514.23/x
  3. Step 3: Cross multiply
    2,178,107.19x = 3,005,347.44 × 1,272,514.23
  4. Step 4: Simplify right side
    2,178,107.19x = 3,824,347,383,494.07
  5. Step 5: Solve for x
    x = 3,824,347,383,494.07/2,178,107.19
  6. Step 6: Final answer
    x = 1,755,812.29

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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.