Home / 789,496.50-1,089,503.28-445,331.28

Finding the Fourth Proportional to 789,496.50, 1,089,503.28 and 445,331.28

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Solution

The fourth proportional to 789,496.50, 1,089,503.28 and 445,331.28 is: 614,556.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,496.50 : 1,089,503.28 = 445,331.28 : x
  2. Step 2: Convert to fraction form
    789,496.50/1,089,503.28 = 445,331.28/x
  3. Step 3: Cross multiply
    789,496.50x = 1,089,503.28 × 445,331.28
  4. Step 4: Simplify right side
    789,496.50x = 485,189,890,246.60
  5. Step 5: Solve for x
    x = 485,189,890,246.60/789,496.50
  6. Step 6: Final answer
    x = 614,556.10

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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.