Home / 1,187,634.98-1,638,096.39-728,773.22

Finding the Fourth Proportional to 1,187,634.98, 1,638,096.39 and 728,773.22

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Solution

The fourth proportional to 1,187,634.98, 1,638,096.39 and 728,773.22 is: 1,005,191.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,634.98 : 1,638,096.39 = 728,773.22 : x
  2. Step 2: Convert to fraction form
    1,187,634.98/1,638,096.39 = 728,773.22/x
  3. Step 3: Cross multiply
    1,187,634.98x = 1,638,096.39 × 728,773.22
  4. Step 4: Simplify right side
    1,187,634.98x = 1,193,800,772,620.19
  5. Step 5: Solve for x
    x = 1,193,800,772,620.19/1,187,634.98
  6. Step 6: Final answer
    x = 1,005,191.66

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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.