Home / 419,621.60-629,694.84-170,303.60

Finding the Fourth Proportional to 419,621.60, 629,694.84 and 170,303.60

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Solution

The fourth proportional to 419,621.60, 629,694.84 and 170,303.60 is: 255,561.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,621.60 : 629,694.84 = 170,303.60 : x
  2. Step 2: Convert to fraction form
    419,621.60/629,694.84 = 170,303.60/x
  3. Step 3: Cross multiply
    419,621.60x = 629,694.84 × 170,303.60
  4. Step 4: Simplify right side
    419,621.60x = 107,239,298,153.42
  5. Step 5: Solve for x
    x = 107,239,298,153.42/419,621.60
  6. Step 6: Final answer
    x = 255,561.91

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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.