Home / 1,123,998.90-1,682,499.15-1,089,006.90

Finding the Fourth Proportional to 1,123,998.90, 1,682,499.15 and 1,089,006.90

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Solution

The fourth proportional to 1,123,998.90, 1,682,499.15 and 1,089,006.90 is: 1,630,120.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,998.90 : 1,682,499.15 = 1,089,006.90 : x
  2. Step 2: Convert to fraction form
    1,123,998.90/1,682,499.15 = 1,089,006.90/x
  3. Step 3: Cross multiply
    1,123,998.90x = 1,682,499.15 × 1,089,006.90
  4. Step 4: Simplify right side
    1,123,998.90x = 1,832,253,183,594.13
  5. Step 5: Solve for x
    x = 1,832,253,183,594.13/1,123,998.90
  6. Step 6: Final answer
    x = 1,630,120.09

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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.