Finding the Fourth Proportional to 764,223.99, 1,145,893.18 and 314,436.76
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Solution
The fourth proportional to 764,223.99, 1,145,893.18 and 314,436.76 is: 471,472.95
Step by Step Solution
- Step 1: Write the proportion equation
764,223.99 : 1,145,893.18 = 314,436.76 : x - Step 2: Convert to fraction form
764,223.99/1,145,893.18 = 314,436.76/x - Step 3: Cross multiply
764,223.99x = 1,145,893.18 × 314,436.76 - Step 4: Simplify right side
764,223.99x = 360,310,938,825.30 - Step 5: Solve for x
x = 360,310,938,825.30/764,223.99 - Step 6: Final answer
x = 471,472.95
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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.