Home / 419,415.12-629,075.58-115,852.43

Finding the Fourth Proportional to 419,415.12, 629,075.58 and 115,852.43

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Solution

The fourth proportional to 419,415.12, 629,075.58 and 115,852.43 is: 173,765.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,415.12 : 629,075.58 = 115,852.43 : x
  2. Step 2: Convert to fraction form
    419,415.12/629,075.58 = 115,852.43/x
  3. Step 3: Cross multiply
    419,415.12x = 629,075.58 × 115,852.43
  4. Step 4: Simplify right side
    419,415.12x = 72,879,931,451.28
  5. Step 5: Solve for x
    x = 72,879,931,451.28/419,415.12
  6. Step 6: Final answer
    x = 173,765.63

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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.