Home / 455,719.26-629,069.74-407,889.58

Finding the Fourth Proportional to 455,719.26, 629,069.74 and 407,889.58

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Solution

The fourth proportional to 455,719.26, 629,069.74 and 407,889.58 is: 563,046.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,719.26 : 629,069.74 = 407,889.58 : x
  2. Step 2: Convert to fraction form
    455,719.26/629,069.74 = 407,889.58/x
  3. Step 3: Cross multiply
    455,719.26x = 629,069.74 × 407,889.58
  4. Step 4: Simplify right side
    455,719.26x = 256,590,992,039.31
  5. Step 5: Solve for x
    x = 256,590,992,039.31/455,719.26
  6. Step 6: Final answer
    x = 563,046.19

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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.