Finding the Fourth Proportional to 879,482.09, 1,213,685.01 and 477,074.09
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Solution
The fourth proportional to 879,482.09, 1,213,685.01 and 477,074.09 is: 658,362.09
Step by Step Solution
- Step 1: Write the proportion equation
879,482.09 : 1,213,685.01 = 477,074.09 : x - Step 2: Convert to fraction form
879,482.09/1,213,685.01 = 477,074.09/x - Step 3: Cross multiply
879,482.09x = 1,213,685.01 × 477,074.09 - Step 4: Simplify right side
879,482.09x = 579,017,665,623.97 - Step 5: Solve for x
x = 579,017,665,623.97/879,482.09 - Step 6: Final answer
x = 658,362.09
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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.