Finding the Fourth Proportional to 614,427.30, 921,640.95 and 193,745.70
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Solution
The fourth proportional to 614,427.30, 921,640.95 and 193,745.70 is: 290,618.55
Step by Step Solution
- Step 1: Write the proportion equation
614,427.30 : 921,640.95 = 193,745.70 : x - Step 2: Convert to fraction form
614,427.30/921,640.95 = 193,745.70/x - Step 3: Cross multiply
614,427.30x = 921,640.95 × 193,745.70 - Step 4: Simplify right side
614,427.30x = 178,563,971,006.42 - Step 5: Solve for x
x = 178,563,971,006.42/614,427.30 - Step 6: Final answer
x = 290,618.55
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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.