Finding the Fourth Proportional to 869,883.21, 1,305,012.49 and 262,621.12
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Solution
The fourth proportional to 869,883.21, 1,305,012.49 and 262,621.12 is: 393,988.34
Step by Step Solution
- Step 1: Write the proportion equation
869,883.21 : 1,305,012.49 = 262,621.12 : x - Step 2: Convert to fraction form
869,883.21/1,305,012.49 = 262,621.12/x - Step 3: Cross multiply
869,883.21x = 1,305,012.49 × 262,621.12 - Step 4: Simplify right side
869,883.21x = 342,723,841,737.79 - Step 5: Solve for x
x = 342,723,841,737.79/869,883.21 - Step 6: Final answer
x = 393,988.34
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.