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Finding the Fourth Proportional to 603,286.72, 832,819.12 and 348,588.64

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Solution

The fourth proportional to 603,286.72, 832,819.12 and 348,588.64 is: 481,216.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,286.72 : 832,819.12 = 348,588.64 : x
  2. Step 2: Convert to fraction form
    603,286.72/832,819.12 = 348,588.64/x
  3. Step 3: Cross multiply
    603,286.72x = 832,819.12 × 348,588.64
  4. Step 4: Simplify right side
    603,286.72x = 290,311,284,406.80
  5. Step 5: Solve for x
    x = 290,311,284,406.80/603,286.72
  6. Step 6: Final answer
    x = 481,216.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.