Home / 419,845.56-579,467.74-291,133.32

Finding the Fourth Proportional to 419,845.56, 579,467.74 and 291,133.32

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Solution

The fourth proportional to 419,845.56, 579,467.74 and 291,133.32 is: 401,820.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,845.56 : 579,467.74 = 291,133.32 : x
  2. Step 2: Convert to fraction form
    419,845.56/579,467.74 = 291,133.32/x
  3. Step 3: Cross multiply
    419,845.56x = 579,467.74 × 291,133.32
  4. Step 4: Simplify right side
    419,845.56x = 168,702,366,979.10
  5. Step 5: Solve for x
    x = 168,702,366,979.10/419,845.56
  6. Step 6: Final answer
    x = 401,820.06

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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.