Home / 1,272,076.72-1,755,507.96-699,137.20

Finding the Fourth Proportional to 1,272,076.72, 1,755,507.96 and 699,137.20

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Solution

The fourth proportional to 1,272,076.72, 1,755,507.96 and 699,137.20 is: 964,832.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,076.72 : 1,755,507.96 = 699,137.20 : x
  2. Step 2: Convert to fraction form
    1,272,076.72/1,755,507.96 = 699,137.20/x
  3. Step 3: Cross multiply
    1,272,076.72x = 1,755,507.96 × 699,137.20
  4. Step 4: Simplify right side
    1,272,076.72x = 1,227,340,919,732.11
  5. Step 5: Solve for x
    x = 1,227,340,919,732.11/1,272,076.72
  6. Step 6: Final answer
    x = 964,832.47

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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.