Finding the Fourth Proportional to 891,286.25, 1,229,977.05 and 509,312.12
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Solution
The fourth proportional to 891,286.25, 1,229,977.05 and 509,312.12 is: 702,851.88
Step by Step Solution
- Step 1: Write the proportion equation
891,286.25 : 1,229,977.05 = 509,312.12 : x - Step 2: Convert to fraction form
891,286.25/1,229,977.05 = 509,312.12/x - Step 3: Cross multiply
891,286.25x = 1,229,977.05 × 509,312.12 - Step 4: Simplify right side
891,286.25x = 626,442,218,886.85 - Step 5: Solve for x
x = 626,442,218,886.85/891,286.25 - Step 6: Final answer
x = 702,851.88
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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.