Home / 743,144.40-1,114,716.60-443,962.80

Finding the Fourth Proportional to 743,144.40, 1,114,716.60 and 443,962.80

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Solution

The fourth proportional to 743,144.40, 1,114,716.60 and 443,962.80 is: 665,944.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,144.40 : 1,114,716.60 = 443,962.80 : x
  2. Step 2: Convert to fraction form
    743,144.40/1,114,716.60 = 443,962.80/x
  3. Step 3: Cross multiply
    743,144.40x = 1,114,716.60 × 443,962.80
  4. Step 4: Simplify right side
    743,144.40x = 494,892,702,942.48
  5. Step 5: Solve for x
    x = 494,892,702,942.48/743,144.40
  6. Step 6: Final answer
    x = 665,944.20

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1.5x scale

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.