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Finding the Fourth Proportional to 603,004.20, 903,911.10 and 336,892.20

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Solution

The fourth proportional to 603,004.20, 903,911.10 and 336,892.20 is: 505,005.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,004.20 : 903,911.10 = 336,892.20 : x
  2. Step 2: Convert to fraction form
    603,004.20/903,911.10 = 336,892.20/x
  3. Step 3: Cross multiply
    603,004.20x = 903,911.10 × 336,892.20
  4. Step 4: Simplify right side
    603,004.20x = 304,520,599,083.42
  5. Step 5: Solve for x
    x = 304,520,599,083.42/603,004.20
  6. Step 6: Final answer
    x = 505,005.77

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Double scale
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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.