Home / 1,131,638.03-1,561,629.34-622,340.40

Finding the Fourth Proportional to 1,131,638.03, 1,561,629.34 and 622,340.40

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Solution

The fourth proportional to 1,131,638.03, 1,561,629.34 and 622,340.40 is: 858,812.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,638.03 : 1,561,629.34 = 622,340.40 : x
  2. Step 2: Convert to fraction form
    1,131,638.03/1,561,629.34 = 622,340.40/x
  3. Step 3: Cross multiply
    1,131,638.03x = 1,561,629.34 × 622,340.40
  4. Step 4: Simplify right side
    1,131,638.03x = 971,865,028,107.34
  5. Step 5: Solve for x
    x = 971,865,028,107.34/1,131,638.03
  6. Step 6: Final answer
    x = 858,812.63

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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.