Finding the Fourth Proportional to 411,936.60, 618,077.70 and 307,660.44
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Solution
The fourth proportional to 411,936.60, 618,077.70 and 307,660.44 is: 461,619.72
Step by Step Solution
- Step 1: Write the proportion equation
411,936.60 : 618,077.70 = 307,660.44 : x - Step 2: Convert to fraction form
411,936.60/618,077.70 = 307,660.44/x - Step 3: Cross multiply
411,936.60x = 618,077.70 × 307,660.44 - Step 4: Simplify right side
411,936.60x = 190,158,057,136.19 - Step 5: Solve for x
x = 190,158,057,136.19/411,936.60 - Step 6: Final answer
x = 461,619.72
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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.