Home / 1,131,638.53-1,561,630.03-622,340.90

Finding the Fourth Proportional to 1,131,638.53, 1,561,630.03 and 622,340.90

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Solution

The fourth proportional to 1,131,638.53, 1,561,630.03 and 622,340.90 is: 858,813.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,638.53 : 1,561,630.03 = 622,340.90 : x
  2. Step 2: Convert to fraction form
    1,131,638.53/1,561,630.03 = 622,340.90/x
  3. Step 3: Cross multiply
    1,131,638.53x = 1,561,630.03 × 622,340.90
  4. Step 4: Simplify right side
    1,131,638.53x = 971,866,238,337.23
  5. Step 5: Solve for x
    x = 971,866,238,337.23/1,131,638.53
  6. Step 6: Final answer
    x = 858,813.32

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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.