Finding the Fourth Proportional to 522,121.36, 720,513.48 and 307,274.08
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Solution
The fourth proportional to 522,121.36, 720,513.48 and 307,274.08 is: 424,029.99
Step by Step Solution
- Step 1: Write the proportion equation
522,121.36 : 720,513.48 = 307,274.08 : x - Step 2: Convert to fraction form
522,121.36/720,513.48 = 307,274.08/x - Step 3: Cross multiply
522,121.36x = 720,513.48 × 307,274.08 - Step 4: Simplify right side
522,121.36x = 221,395,116,694.60 - Step 5: Solve for x
x = 221,395,116,694.60/522,121.36 - Step 6: Final answer
x = 424,029.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.