Finding the Fourth Proportional to 867,863.16, 1,296,517.12 and 561,763.76
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Solution
The fourth proportional to 867,863.16, 1,296,517.12 and 561,763.76 is: 839,229.45
Step by Step Solution
- Step 1: Write the proportion equation
867,863.16 : 1,296,517.12 = 561,763.76 : x - Step 2: Convert to fraction form
867,863.16/1,296,517.12 = 561,763.76/x - Step 3: Cross multiply
867,863.16x = 1,296,517.12 × 561,763.76 - Step 4: Simplify right side
867,863.16x = 728,336,324,348.58 - Step 5: Solve for x
x = 728,336,324,348.58/867,863.16 - Step 6: Final answer
x = 839,229.45
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.