Home / 1,190,985.76-1,643,633.84-681,676.48

Finding the Fourth Proportional to 1,190,985.76, 1,643,633.84 and 681,676.48

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Solution

The fourth proportional to 1,190,985.76, 1,643,633.84 and 681,676.48 is: 940,755.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,985.76 : 1,643,633.84 = 681,676.48 : x
  2. Step 2: Convert to fraction form
    1,190,985.76/1,643,633.84 = 681,676.48/x
  3. Step 3: Cross multiply
    1,190,985.76x = 1,643,633.84 × 681,676.48
  4. Step 4: Simplify right side
    1,190,985.76x = 1,120,426,530,460.08
  5. Step 5: Solve for x
    x = 1,120,426,530,460.08/1,190,985.76
  6. Step 6: Final answer
    x = 940,755.61

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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.