Home / 1,079,801.28-1,489,764.96-698,310.72

Finding the Fourth Proportional to 1,079,801.28, 1,489,764.96 and 698,310.72

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Solution

The fourth proportional to 1,079,801.28, 1,489,764.96 and 698,310.72 is: 963,435.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,079,801.28 : 1,489,764.96 = 698,310.72 : x
  2. Step 2: Convert to fraction form
    1,079,801.28/1,489,764.96 = 698,310.72/x
  3. Step 3: Cross multiply
    1,079,801.28x = 1,489,764.96 × 698,310.72
  4. Step 4: Simplify right side
    1,079,801.28x = 1,040,318,841,848.37
  5. Step 5: Solve for x
    x = 1,040,318,841,848.37/1,079,801.28
  6. Step 6: Final answer
    x = 963,435.46

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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.