Home / 789,346.64-1,089,282.12-431,650.64

Finding the Fourth Proportional to 789,346.64, 1,089,282.12 and 431,650.64

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Solution

The fourth proportional to 789,346.64, 1,089,282.12 and 431,650.64 is: 595,669.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,346.64 : 1,089,282.12 = 431,650.64 : x
  2. Step 2: Convert to fraction form
    789,346.64/1,089,282.12 = 431,650.64/x
  3. Step 3: Cross multiply
    789,346.64x = 1,089,282.12 × 431,650.64
  4. Step 4: Simplify right side
    789,346.64x = 470,189,324,238.56
  5. Step 5: Solve for x
    x = 470,189,324,238.56/789,346.64
  6. Step 6: Final answer
    x = 595,669.00

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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.