Home / 1,089,212.71-1,503,132.86-605,778.05

Finding the Fourth Proportional to 1,089,212.71, 1,503,132.86 and 605,778.05

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Solution

The fourth proportional to 1,089,212.71, 1,503,132.86 and 605,778.05 is: 835,984.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,089,212.71 : 1,503,132.86 = 605,778.05 : x
  2. Step 2: Convert to fraction form
    1,089,212.71/1,503,132.86 = 605,778.05/x
  3. Step 3: Cross multiply
    1,089,212.71x = 1,503,132.86 × 605,778.05
  4. Step 4: Simplify right side
    1,089,212.71x = 910,564,892,821.72
  5. Step 5: Solve for x
    x = 910,564,892,821.72/1,089,212.71
  6. Step 6: Final answer
    x = 835,984.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.