Finding the Fourth Proportional to 631,252.98, 871,129.12 and 344,773.75
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Solution
The fourth proportional to 631,252.98, 871,129.12 and 344,773.75 is: 475,787.78
Step by Step Solution
- Step 1: Write the proportion equation
631,252.98 : 871,129.12 = 344,773.75 : x - Step 2: Convert to fraction form
631,252.98/871,129.12 = 344,773.75/x - Step 3: Cross multiply
631,252.98x = 871,129.12 × 344,773.75 - Step 4: Simplify right side
631,252.98x = 300,342,453,436.60 - Step 5: Solve for x
x = 300,342,453,436.60/631,252.98 - Step 6: Final answer
x = 475,787.78
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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.