Home / 419,316.72-629,075.62-135,034.05

Finding the Fourth Proportional to 419,316.72, 629,075.62 and 135,034.05

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Solution

The fourth proportional to 419,316.72, 629,075.62 and 135,034.05 is: 202,583.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,316.72 : 629,075.62 = 135,034.05 : x
  2. Step 2: Convert to fraction form
    419,316.72/629,075.62 = 135,034.05/x
  3. Step 3: Cross multiply
    419,316.72x = 629,075.62 × 135,034.05
  4. Step 4: Simplify right side
    419,316.72x = 84,946,631,252.69
  5. Step 5: Solve for x
    x = 84,946,631,252.69/419,316.72
  6. Step 6: Final answer
    x = 202,583.46

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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.