Finding the Fourth Proportional to 879,642.26, 1,213,901.25 and 477,225.62
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Solution
The fourth proportional to 879,642.26, 1,213,901.25 and 477,225.62 is: 658,568.61
Step by Step Solution
- Step 1: Write the proportion equation
879,642.26 : 1,213,901.25 = 477,225.62 : x - Step 2: Convert to fraction form
879,642.26/1,213,901.25 = 477,225.62/x - Step 3: Cross multiply
879,642.26x = 1,213,901.25 × 477,225.62 - Step 4: Simplify right side
879,642.26x = 579,304,776,650.03 - Step 5: Solve for x
x = 579,304,776,650.03/879,642.26 - Step 6: Final answer
x = 658,568.61
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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.