Home / 789,652.25-1,089,720.09-427,076.10

Finding the Fourth Proportional to 789,652.25, 1,089,720.09 and 427,076.10

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Solution

The fourth proportional to 789,652.25, 1,089,720.09 and 427,076.10 is: 589,365.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,652.25 : 1,089,720.09 = 427,076.10 : x
  2. Step 2: Convert to fraction form
    789,652.25/1,089,720.09 = 427,076.10/x
  3. Step 3: Cross multiply
    789,652.25x = 1,089,720.09 × 427,076.10
  4. Step 4: Simplify right side
    789,652.25x = 465,393,406,128.85
  5. Step 5: Solve for x
    x = 465,393,406,128.85/789,652.25
  6. Step 6: Final answer
    x = 589,365.01

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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.