Finding the Fourth Proportional to 478,427.25, 717,640.88 and 197,951.79
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Solution
The fourth proportional to 478,427.25, 717,640.88 and 197,951.79 is: 296,927.69
Step by Step Solution
- Step 1: Write the proportion equation
478,427.25 : 717,640.88 = 197,951.79 : x - Step 2: Convert to fraction form
478,427.25/717,640.88 = 197,951.79/x - Step 3: Cross multiply
478,427.25x = 717,640.88 × 197,951.79 - Step 4: Simplify right side
478,427.25x = 142,058,295,783.42 - Step 5: Solve for x
x = 142,058,295,783.42/478,427.25 - Step 6: Final answer
x = 296,927.69
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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.