Home / 1,219,634.96-1,831,128.20-620,998.36

Finding the Fourth Proportional to 1,219,634.96, 1,831,128.20 and 620,998.36

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Solution

The fourth proportional to 1,219,634.96, 1,831,128.20 and 620,998.36 is: 932,350.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219,634.96 : 1,831,128.20 = 620,998.36 : x
  2. Step 2: Convert to fraction form
    1,219,634.96/1,831,128.20 = 620,998.36/x
  3. Step 3: Cross multiply
    1,219,634.96x = 1,831,128.20 × 620,998.36
  4. Step 4: Simplify right side
    1,219,634.96x = 1,137,127,609,149.75
  5. Step 5: Solve for x
    x = 1,137,127,609,149.75/1,219,634.96
  6. Step 6: Final answer
    x = 932,350.78

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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.