Home / 1,261,771.44-1,741,274.40-688,815.88

Finding the Fourth Proportional to 1,261,771.44, 1,741,274.40 and 688,815.88

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Solution

The fourth proportional to 1,261,771.44, 1,741,274.40 and 688,815.88 is: 950,582.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,771.44 : 1,741,274.40 = 688,815.88 : x
  2. Step 2: Convert to fraction form
    1,261,771.44/1,741,274.40 = 688,815.88/x
  3. Step 3: Cross multiply
    1,261,771.44x = 1,741,274.40 × 688,815.88
  4. Step 4: Simplify right side
    1,261,771.44x = 1,199,417,458,157.47
  5. Step 5: Solve for x
    x = 1,199,417,458,157.47/1,261,771.44
  6. Step 6: Final answer
    x = 950,582.19

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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.