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Finding the Fourth Proportional to 613,522.02, 920,429.09 and 309,168.37

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Solution

The fourth proportional to 613,522.02, 920,429.09 and 309,168.37 is: 463,826.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,522.02 : 920,429.09 = 309,168.37 : x
  2. Step 2: Convert to fraction form
    613,522.02/920,429.09 = 309,168.37/x
  3. Step 3: Cross multiply
    613,522.02x = 920,429.09 × 309,168.37
  4. Step 4: Simplify right side
    613,522.02x = 284,567,561,455.88
  5. Step 5: Solve for x
    x = 284,567,561,455.88/613,522.02
  6. Step 6: Final answer
    x = 463,826.16

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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.