Home / 447,788.10-617,474.01-345,830.16

Finding the Fourth Proportional to 447,788.10, 617,474.01 and 345,830.16

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Solution

The fourth proportional to 447,788.10, 617,474.01 and 345,830.16 is: 476,879.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,788.10 : 617,474.01 = 345,830.16 : x
  2. Step 2: Convert to fraction form
    447,788.10/617,474.01 = 345,830.16/x
  3. Step 3: Cross multiply
    447,788.10x = 617,474.01 × 345,830.16
  4. Step 4: Simplify right side
    447,788.10x = 213,541,135,674.14
  5. Step 5: Solve for x
    x = 213,541,135,674.14/447,788.10
  6. Step 6: Final answer
    x = 476,879.88

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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.