Home / 463,485.20-694,410.12-405,916.72

Finding the Fourth Proportional to 463,485.20, 694,410.12 and 405,916.72

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Solution

The fourth proportional to 463,485.20, 694,410.12 and 405,916.72 is: 608,158.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,485.20 : 694,410.12 = 405,916.72 : x
  2. Step 2: Convert to fraction form
    463,485.20/694,410.12 = 405,916.72/x
  3. Step 3: Cross multiply
    463,485.20x = 694,410.12 × 405,916.72
  4. Step 4: Simplify right side
    463,485.20x = 281,872,678,245.21
  5. Step 5: Solve for x
    x = 281,872,678,245.21/463,485.20
  6. Step 6: Final answer
    x = 608,158.96

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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.