Finding the Fourth Proportional to 685,763.72, 1,028,694.84 and 236,478.09
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Solution
The fourth proportional to 685,763.72, 1,028,694.84 and 236,478.09 is: 354,734.12
Step by Step Solution
- Step 1: Write the proportion equation
685,763.72 : 1,028,694.84 = 236,478.09 : x - Step 2: Convert to fraction form
685,763.72/1,028,694.84 = 236,478.09/x - Step 3: Cross multiply
685,763.72x = 1,028,694.84 × 236,478.09 - Step 4: Simplify right side
685,763.72x = 243,263,789,773.67 - Step 5: Solve for x
x = 243,263,789,773.67/685,763.72 - Step 6: Final answer
x = 354,734.12
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.