Home / 784,410.10-1,082,440.43-440,213.88

Finding the Fourth Proportional to 784,410.10, 1,082,440.43 and 440,213.88

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Solution

The fourth proportional to 784,410.10, 1,082,440.43 and 440,213.88 is: 607,469.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,410.10 : 1,082,440.43 = 440,213.88 : x
  2. Step 2: Convert to fraction form
    784,410.10/1,082,440.43 = 440,213.88/x
  3. Step 3: Cross multiply
    784,410.10x = 1,082,440.43 × 440,213.88
  4. Step 4: Simplify right side
    784,410.10x = 476,505,301,008.90
  5. Step 5: Solve for x
    x = 476,505,301,008.90/784,410.10
  6. Step 6: Final answer
    x = 607,469.62

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Double scale
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1.5x scale

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.