Home / 812,102.40-1,214,697.60-728,467.20

Finding the Fourth Proportional to 812,102.40, 1,214,697.60 and 728,467.20

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Solution

The fourth proportional to 812,102.40, 1,214,697.60 and 728,467.20 is: 1,089,600.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,102.40 : 1,214,697.60 = 728,467.20 : x
  2. Step 2: Convert to fraction form
    812,102.40/1,214,697.60 = 728,467.20/x
  3. Step 3: Cross multiply
    812,102.40x = 1,214,697.60 × 728,467.20
  4. Step 4: Simplify right side
    812,102.40x = 884,867,359,518.72
  5. Step 5: Solve for x
    x = 884,867,359,518.72/812,102.40
  6. Step 6: Final answer
    x = 1,089,600.72

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