Finding the Fourth Proportional to 809,664.60, 1,214,642.70 and 336,397.80
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Solution
The fourth proportional to 809,664.60, 1,214,642.70 and 336,397.80 is: 504,657.28
Step by Step Solution
- Step 1: Write the proportion equation
809,664.60 : 1,214,642.70 = 336,397.80 : x - Step 2: Convert to fraction form
809,664.60/1,214,642.70 = 336,397.80/x - Step 3: Cross multiply
809,664.60x = 1,214,642.70 × 336,397.80 - Step 4: Simplify right side
809,664.60x = 408,603,132,066.06 - Step 5: Solve for x
x = 408,603,132,066.06/809,664.60 - Step 6: Final answer
x = 504,657.28
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.