Home / 1,720,008.30-2,580,012.45-1,089,633.90

Finding the Fourth Proportional to 1,720,008.30, 2,580,012.45 and 1,089,633.90

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Solution

The fourth proportional to 1,720,008.30, 2,580,012.45 and 1,089,633.90 is: 1,634,450.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,720,008.30 : 2,580,012.45 = 1,089,633.90 : x
  2. Step 2: Convert to fraction form
    1,720,008.30/2,580,012.45 = 1,089,633.90/x
  3. Step 3: Cross multiply
    1,720,008.30x = 2,580,012.45 × 1,089,633.90
  4. Step 4: Simplify right side
    1,720,008.30x = 2,811,269,027,942.06
  5. Step 5: Solve for x
    x = 2,811,269,027,942.06/1,720,008.30
  6. Step 6: Final answer
    x = 1,634,450.85

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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.