Home / 1,131,023.56-1,560,814.18-621,729.04

Finding the Fourth Proportional to 1,131,023.56, 1,560,814.18 and 621,729.04

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Solution

The fourth proportional to 1,131,023.56, 1,560,814.18 and 621,729.04 is: 857,986.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,023.56 : 1,560,814.18 = 621,729.04 : x
  2. Step 2: Convert to fraction form
    1,131,023.56/1,560,814.18 = 621,729.04/x
  3. Step 3: Cross multiply
    1,131,023.56x = 1,560,814.18 × 621,729.04
  4. Step 4: Simplify right side
    1,131,023.56x = 970,403,501,749.79
  5. Step 5: Solve for x
    x = 970,403,501,749.79/1,131,023.56
  6. Step 6: Final answer
    x = 857,986.99

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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.