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Finding the Fourth Proportional to 649,118.80, 973,447.80 and 449,438.80

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Solution

The fourth proportional to 649,118.80, 973,447.80 and 449,438.80 is: 673,998.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,118.80 : 973,447.80 = 449,438.80 : x
  2. Step 2: Convert to fraction form
    649,118.80/973,447.80 = 449,438.80/x
  3. Step 3: Cross multiply
    649,118.80x = 973,447.80 × 449,438.80
  4. Step 4: Simplify right side
    649,118.80x = 437,505,211,094.64
  5. Step 5: Solve for x
    x = 437,505,211,094.64/649,118.80
  6. Step 6: Final answer
    x = 673,998.67

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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.