Home / 1,287,676.80-1,777,016.32-706,953.96

Finding the Fourth Proportional to 1,287,676.80, 1,777,016.32 and 706,953.96

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Solution

The fourth proportional to 1,287,676.80, 1,777,016.32 and 706,953.96 is: 975,608.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,676.80 : 1,777,016.32 = 706,953.96 : x
  2. Step 2: Convert to fraction form
    1,287,676.80/1,777,016.32 = 706,953.96/x
  3. Step 3: Cross multiply
    1,287,676.80x = 1,777,016.32 × 706,953.96
  4. Step 4: Simplify right side
    1,287,676.80x = 1,256,268,724,408.63
  5. Step 5: Solve for x
    x = 1,256,268,724,408.63/1,287,676.80
  6. Step 6: Final answer
    x = 975,608.73

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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.