Home / 831,627.60-1,247,470.20-263,014.80

Finding the Fourth Proportional to 831,627.60, 1,247,470.20 and 263,014.80

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Solution

The fourth proportional to 831,627.60, 1,247,470.20 and 263,014.80 is: 394,531.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,627.60 : 1,247,470.20 = 263,014.80 : x
  2. Step 2: Convert to fraction form
    831,627.60/1,247,470.20 = 263,014.80/x
  3. Step 3: Cross multiply
    831,627.60x = 1,247,470.20 × 263,014.80
  4. Step 4: Simplify right side
    831,627.60x = 328,103,125,158.96
  5. Step 5: Solve for x
    x = 328,103,125,158.96/831,627.60
  6. Step 6: Final answer
    x = 394,531.31

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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.