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Finding the Fourth Proportional to 1,202,739.15, 1,659,798.85 and 658,839.03

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Solution

The fourth proportional to 1,202,739.15, 1,659,798.85 and 658,839.03 is: 909,208.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,202,739.15 : 1,659,798.85 = 658,839.03 : x
  2. Step 2: Convert to fraction form
    1,202,739.15/1,659,798.85 = 658,839.03/x
  3. Step 3: Cross multiply
    1,202,739.15x = 1,659,798.85 × 658,839.03
  4. Step 4: Simplify right side
    1,202,739.15x = 1,093,540,267,029.46
  5. Step 5: Solve for x
    x = 1,093,540,267,029.46/1,202,739.15
  6. Step 6: Final answer
    x = 909,208.18

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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.