Home / 789,775.34-1,089,885.86-427,198.08

Finding the Fourth Proportional to 789,775.34, 1,089,885.86 and 427,198.08

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Solution

The fourth proportional to 789,775.34, 1,089,885.86 and 427,198.08 is: 589,531.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,775.34 : 1,089,885.86 = 427,198.08 : x
  2. Step 2: Convert to fraction form
    789,775.34/1,089,885.86 = 427,198.08/x
  3. Step 3: Cross multiply
    789,775.34x = 1,089,885.86 × 427,198.08
  4. Step 4: Simplify right side
    789,775.34x = 465,597,146,811.15
  5. Step 5: Solve for x
    x = 465,597,146,811.15/789,775.34
  6. Step 6: Final answer
    x = 589,531.13

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1.5x scale

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.