Home / 789,467.55-1,089,464.40-426,890.55

Finding the Fourth Proportional to 789,467.55, 1,089,464.40 and 426,890.55

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Solution

The fourth proportional to 789,467.55, 1,089,464.40 and 426,890.55 is: 589,108.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,467.55 : 1,089,464.40 = 426,890.55 : x
  2. Step 2: Convert to fraction form
    789,467.55/1,089,464.40 = 426,890.55/x
  3. Step 3: Cross multiply
    789,467.55x = 1,089,464.40 × 426,890.55
  4. Step 4: Simplify right side
    789,467.55x = 465,082,056,921.42
  5. Step 5: Solve for x
    x = 465,082,056,921.42/789,467.55
  6. Step 6: Final answer
    x = 589,108.52

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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.