Home / 1,720,008.80-2,580,013.20-1,089,634.40

Finding the Fourth Proportional to 1,720,008.80, 2,580,013.20 and 1,089,634.40

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Solution

The fourth proportional to 1,720,008.80, 2,580,013.20 and 1,089,634.40 is: 1,634,451.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,720,008.80 : 2,580,013.20 = 1,089,634.40 : x
  2. Step 2: Convert to fraction form
    1,720,008.80/2,580,013.20 = 1,089,634.40/x
  3. Step 3: Cross multiply
    1,720,008.80x = 2,580,013.20 × 1,089,634.40
  4. Step 4: Simplify right side
    1,720,008.80x = 2,811,271,135,174.08
  5. Step 5: Solve for x
    x = 2,811,271,135,174.08/1,720,008.80
  6. Step 6: Final answer
    x = 1,634,451.60

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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.