Finding the Fourth Proportional to 879,694.68, 1,213,617.79 and 535,254.49
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Solution
The fourth proportional to 879,694.68, 1,213,617.79 and 535,254.49 is: 738,431.62
Step by Step Solution
- Step 1: Write the proportion equation
879,694.68 : 1,213,617.79 = 535,254.49 : x - Step 2: Convert to fraction form
879,694.68/1,213,617.79 = 535,254.49/x - Step 3: Cross multiply
879,694.68x = 1,213,617.79 × 535,254.49 - Step 4: Simplify right side
879,694.68x = 649,594,371,241.38 - Step 5: Solve for x
x = 649,594,371,241.38/879,694.68 - Step 6: Final answer
x = 738,431.62
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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.