Finding the Fourth Proportional to 522,390.97, 720,907.80 and 292,999.28
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Solution
The fourth proportional to 522,390.97, 720,907.80 and 292,999.28 is: 404,343.63
Step by Step Solution
- Step 1: Write the proportion equation
522,390.97 : 720,907.80 = 292,999.28 : x - Step 2: Convert to fraction form
522,390.97/720,907.80 = 292,999.28/x - Step 3: Cross multiply
522,390.97x = 720,907.80 × 292,999.28 - Step 4: Simplify right side
522,390.97x = 211,225,461,643.10 - Step 5: Solve for x
x = 211,225,461,643.10/522,390.97 - Step 6: Final answer
x = 404,343.63
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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.