Home / 789,455.50-1,089,446.66-426,878.24

Finding the Fourth Proportional to 789,455.50, 1,089,446.66 and 426,878.24

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Solution

The fourth proportional to 789,455.50, 1,089,446.66 and 426,878.24 is: 589,090.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,455.50 : 1,089,446.66 = 426,878.24 : x
  2. Step 2: Convert to fraction form
    789,455.50/1,089,446.66 = 426,878.24/x
  3. Step 3: Cross multiply
    789,455.50x = 1,089,446.66 × 426,878.24
  4. Step 4: Simplify right side
    789,455.50x = 465,061,066,813.85
  5. Step 5: Solve for x
    x = 465,061,066,813.85/789,455.50
  6. Step 6: Final answer
    x = 589,090.92

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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.