Home / 2,687,348.78-4,030,998.09-1,089,532.05

Finding the Fourth Proportional to 2,687,348.78, 4,030,998.09 and 1,089,532.05

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Solution

The fourth proportional to 2,687,348.78, 4,030,998.09 and 1,089,532.05 is: 1,634,287.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,687,348.78 : 4,030,998.09 = 1,089,532.05 : x
  2. Step 2: Convert to fraction form
    2,687,348.78/4,030,998.09 = 1,089,532.05/x
  3. Step 3: Cross multiply
    2,687,348.78x = 4,030,998.09 × 1,089,532.05
  4. Step 4: Simplify right side
    2,687,348.78x = 4,391,901,612,543.78
  5. Step 5: Solve for x
    x = 4,391,901,612,543.78/2,687,348.78
  6. Step 6: Final answer
    x = 1,634,287.91

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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.