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Finding the Fourth Proportional to 802,912.60, 1,203,317.70 and 404,003.80

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Solution

The fourth proportional to 802,912.60, 1,203,317.70 and 404,003.80 is: 605,476.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,912.60 : 1,203,317.70 = 404,003.80 : x
  2. Step 2: Convert to fraction form
    802,912.60/1,203,317.70 = 404,003.80/x
  3. Step 3: Cross multiply
    802,912.60x = 1,203,317.70 × 404,003.80
  4. Step 4: Simplify right side
    802,912.60x = 486,144,923,407.26
  5. Step 5: Solve for x
    x = 486,144,923,407.26/802,912.60
  6. Step 6: Final answer
    x = 605,476.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.