Finding the Fourth Proportional to 809,707.12, 1,213,747.85 and 276,863.74
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Solution
The fourth proportional to 809,707.12, 1,213,747.85 and 276,863.74 is: 415,017.68
Step by Step Solution
- Step 1: Write the proportion equation
809,707.12 : 1,213,747.85 = 276,863.74 : x - Step 2: Convert to fraction form
809,707.12/1,213,747.85 = 276,863.74/x - Step 3: Cross multiply
809,707.12x = 1,213,747.85 × 276,863.74 - Step 4: Simplify right side
809,707.12x = 336,042,767,783.64 - Step 5: Solve for x
x = 336,042,767,783.64/809,707.12 - Step 6: Final answer
x = 415,017.68
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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.