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Finding the Fourth Proportional to 649,114.80, 973,441.80 and 449,434.80

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Solution

The fourth proportional to 649,114.80, 973,441.80 and 449,434.80 is: 673,992.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,114.80 : 973,441.80 = 449,434.80 : x
  2. Step 2: Convert to fraction form
    649,114.80/973,441.80 = 449,434.80/x
  3. Step 3: Cross multiply
    649,114.80x = 973,441.80 × 449,434.80
  4. Step 4: Simplify right side
    649,114.80x = 437,498,620,694.64
  5. Step 5: Solve for x
    x = 437,498,620,694.64/649,114.80
  6. Step 6: Final answer
    x = 673,992.68

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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.