Home / 1,131,308.40-1,561,165.64-622,006.80

Finding the Fourth Proportional to 1,131,308.40, 1,561,165.64 and 622,006.80

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Solution

The fourth proportional to 1,131,308.40, 1,561,165.64 and 622,006.80 is: 858,347.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,308.40 : 1,561,165.64 = 622,006.80 : x
  2. Step 2: Convert to fraction form
    1,131,308.40/1,561,165.64 = 622,006.80/x
  3. Step 3: Cross multiply
    1,131,308.40x = 1,561,165.64 × 622,006.80
  4. Step 4: Simplify right side
    1,131,308.40x = 971,055,644,006.35
  5. Step 5: Solve for x
    x = 971,055,644,006.35/1,131,308.40
  6. Step 6: Final answer
    x = 858,347.42

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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.