Home / 789,396.36-1,089,118.30-483,153.48

Finding the Fourth Proportional to 789,396.36, 1,089,118.30 and 483,153.48

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Solution

The fourth proportional to 789,396.36, 1,089,118.30 and 483,153.48 is: 666,599.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,396.36 : 1,089,118.30 = 483,153.48 : x
  2. Step 2: Convert to fraction form
    789,396.36/1,089,118.30 = 483,153.48/x
  3. Step 3: Cross multiply
    789,396.36x = 1,089,118.30 × 483,153.48
  4. Step 4: Simplify right side
    789,396.36x = 526,211,296,776.68
  5. Step 5: Solve for x
    x = 526,211,296,776.68/789,396.36
  6. Step 6: Final answer
    x = 666,599.60

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Double scale
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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.