Finding the Fourth Proportional to 3,921,736.68, 5,411,157.14 and 2,289,403.24
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Solution
The fourth proportional to 3,921,736.68, 5,411,157.14 and 2,289,403.24 is: 3,158,886.41
Step by Step Solution
- Step 1: Write the proportion equation
3,921,736.68 : 5,411,157.14 = 2,289,403.24 : x - Step 2: Convert to fraction form
3,921,736.68/5,411,157.14 = 2,289,403.24/x - Step 3: Cross multiply
3,921,736.68x = 5,411,157.14 × 2,289,403.24 - Step 4: Simplify right side
3,921,736.68x = 12,388,320,688,465.13 - Step 5: Solve for x
x = 12,388,320,688,465.13/3,921,736.68 - Step 6: Final answer
x = 3,158,886.41
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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.