Home / 728,241.84-1,089,563.40-443,880.81

Finding the Fourth Proportional to 728,241.84, 1,089,563.40 and 443,880.81

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Solution

The fourth proportional to 728,241.84, 1,089,563.40 and 443,880.81 is: 664,114.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,241.84 : 1,089,563.40 = 443,880.81 : x
  2. Step 2: Convert to fraction form
    728,241.84/1,089,563.40 = 443,880.81/x
  3. Step 3: Cross multiply
    728,241.84x = 1,089,563.40 × 443,880.81
  4. Step 4: Simplify right side
    728,241.84x = 483,636,284,538.35
  5. Step 5: Solve for x
    x = 483,636,284,538.35/728,241.84
  6. Step 6: Final answer
    x = 664,114.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.