Home / 789,608.58-1,089,656.67-427,032.81

Finding the Fourth Proportional to 789,608.58, 1,089,656.67 and 427,032.81

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Solution

The fourth proportional to 789,608.58, 1,089,656.67 and 427,032.81 is: 589,303.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,608.58 : 1,089,656.67 = 427,032.81 : x
  2. Step 2: Convert to fraction form
    789,608.58/1,089,656.67 = 427,032.81/x
  3. Step 3: Cross multiply
    789,608.58x = 1,089,656.67 × 427,032.81
  4. Step 4: Simplify right side
    789,608.58x = 465,319,149,725.34
  5. Step 5: Solve for x
    x = 465,319,149,725.34/789,608.58
  6. Step 6: Final answer
    x = 589,303.56

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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.