Finding the Fourth Proportional to 642,064.23, 886,077.36 and 351,696.24
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Solution
The fourth proportional to 642,064.23, 886,077.36 and 351,696.24 is: 485,356.54
Step by Step Solution
- Step 1: Write the proportion equation
642,064.23 : 886,077.36 = 351,696.24 : x - Step 2: Convert to fraction form
642,064.23/886,077.36 = 351,696.24/x - Step 3: Cross multiply
642,064.23x = 886,077.36 × 351,696.24 - Step 4: Simplify right side
642,064.23x = 311,630,075,861.13 - Step 5: Solve for x
x = 311,630,075,861.13/642,064.23 - Step 6: Final answer
x = 485,356.54
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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.