Finding the Fourth Proportional to 879,643.26, 1,213,902.63 and 477,226.62
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Solution
The fourth proportional to 879,643.26, 1,213,902.63 and 477,226.62 is: 658,569.99
Step by Step Solution
- Step 1: Write the proportion equation
879,643.26 : 1,213,902.63 = 477,226.62 : x - Step 2: Convert to fraction form
879,643.26/1,213,902.63 = 477,226.62/x - Step 3: Cross multiply
879,643.26x = 1,213,902.63 × 477,226.62 - Step 4: Simplify right side
879,643.26x = 579,306,649,124.01 - Step 5: Solve for x
x = 579,306,649,124.01/879,643.26 - Step 6: Final answer
x = 658,569.99
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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.