Finding the Fourth Proportional to 762,625.12, 1,052,548.56 and 423,202.72
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Solution
The fourth proportional to 762,625.12, 1,052,548.56 and 423,202.72 is: 584,089.62
Step by Step Solution
- Step 1: Write the proportion equation
762,625.12 : 1,052,548.56 = 423,202.72 : x - Step 2: Convert to fraction form
762,625.12/1,052,548.56 = 423,202.72/x - Step 3: Cross multiply
762,625.12x = 1,052,548.56 × 423,202.72 - Step 4: Simplify right side
762,625.12x = 445,441,413,524.08 - Step 5: Solve for x
x = 445,441,413,524.08/762,625.12 - Step 6: Final answer
x = 584,089.62
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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.