Finding the Fourth Proportional to 880,915.57, 1,215,643.11 and 513,369.29
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Solution
The fourth proportional to 880,915.57, 1,215,643.11 and 513,369.29 is: 708,437.75
Step by Step Solution
- Step 1: Write the proportion equation
880,915.57 : 1,215,643.11 = 513,369.29 : x - Step 2: Convert to fraction form
880,915.57/1,215,643.11 = 513,369.29/x - Step 3: Cross multiply
880,915.57x = 1,215,643.11 × 513,369.29 - Step 4: Simplify right side
880,915.57x = 624,073,841,388.07 - Step 5: Solve for x
x = 624,073,841,388.07/880,915.57 - Step 6: Final answer
x = 708,437.75
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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.