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Finding the Fourth Proportional to 789,599.02, 1,089,649.90 and 427,022.88

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Solution

The fourth proportional to 789,599.02, 1,089,649.90 and 427,022.88 is: 589,293.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,599.02 : 1,089,649.90 = 427,022.88 : x
  2. Step 2: Convert to fraction form
    789,599.02/1,089,649.90 = 427,022.88/x
  3. Step 3: Cross multiply
    789,599.02x = 1,089,649.90 × 427,022.88
  4. Step 4: Simplify right side
    789,599.02x = 465,305,438,489.71
  5. Step 5: Solve for x
    x = 465,305,438,489.71/789,599.02
  6. Step 6: Final answer
    x = 589,293.33

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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.