Home / 2,178,107.20-3,005,347.46-1,272,514.24

Finding the Fourth Proportional to 2,178,107.20, 3,005,347.46 and 1,272,514.24

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Solution

The fourth proportional to 2,178,107.20, 3,005,347.46 and 1,272,514.24 is: 1,755,812.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,178,107.20 : 3,005,347.46 = 1,272,514.24 : x
  2. Step 2: Convert to fraction form
    2,178,107.20/3,005,347.46 = 1,272,514.24/x
  3. Step 3: Cross multiply
    2,178,107.20x = 3,005,347.46 × 1,272,514.24
  4. Step 4: Simplify right side
    2,178,107.20x = 3,824,347,438,997.83
  5. Step 5: Solve for x
    x = 3,824,347,438,997.83/2,178,107.20
  6. Step 6: Final answer
    x = 1,755,812.31

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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.