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Finding the Fourth Proportional to 440,441.90, 660,662.85 and 365,711.30

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Solution

The fourth proportional to 440,441.90, 660,662.85 and 365,711.30 is: 548,566.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,441.90 : 660,662.85 = 365,711.30 : x
  2. Step 2: Convert to fraction form
    440,441.90/660,662.85 = 365,711.30/x
  3. Step 3: Cross multiply
    440,441.90x = 660,662.85 × 365,711.30
  4. Step 4: Simplify right side
    440,441.90x = 241,611,869,735.21
  5. Step 5: Solve for x
    x = 241,611,869,735.21/440,441.90
  6. Step 6: Final answer
    x = 548,566.95

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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.