Home / 1,317,659.44-1,818,294.51-728,923.69

Finding the Fourth Proportional to 1,317,659.44, 1,818,294.51 and 728,923.69

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Solution

The fourth proportional to 1,317,659.44, 1,818,294.51 and 728,923.69 is: 1,005,872.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,317,659.44 : 1,818,294.51 = 728,923.69 : x
  2. Step 2: Convert to fraction form
    1,317,659.44/1,818,294.51 = 728,923.69/x
  3. Step 3: Cross multiply
    1,317,659.44x = 1,818,294.51 × 728,923.69
  4. Step 4: Simplify right side
    1,317,659.44x = 1,325,397,943,735.94
  5. Step 5: Solve for x
    x = 1,325,397,943,735.94/1,317,659.44
  6. Step 6: Final answer
    x = 1,005,872.92

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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.