Home / 419,960.10-629,065.35-349,976.10

Finding the Fourth Proportional to 419,960.10, 629,065.35 and 349,976.10

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Solution

The fourth proportional to 419,960.10, 629,065.35 and 349,976.10 is: 524,235.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,960.10 : 629,065.35 = 349,976.10 : x
  2. Step 2: Convert to fraction form
    419,960.10/629,065.35 = 349,976.10/x
  3. Step 3: Cross multiply
    419,960.10x = 629,065.35 × 349,976.10
  4. Step 4: Simplify right side
    419,960.10x = 220,157,837,838.14
  5. Step 5: Solve for x
    x = 220,157,837,838.14/419,960.10
  6. Step 6: Final answer
    x = 524,235.13

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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.