Finding the Fourth Proportional to 853,439.58, 1,279,718.33 and 313,557.98
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Solution
The fourth proportional to 853,439.58, 1,279,718.33 and 313,557.98 is: 470,174.92
Step by Step Solution
- Step 1: Write the proportion equation
853,439.58 : 1,279,718.33 = 313,557.98 : x - Step 2: Convert to fraction form
853,439.58/1,279,718.33 = 313,557.98/x - Step 3: Cross multiply
853,439.58x = 1,279,718.33 × 313,557.98 - Step 4: Simplify right side
853,439.58x = 401,265,886,557.39 - Step 5: Solve for x
x = 401,265,886,557.39/853,439.58 - Step 6: Final answer
x = 470,174.92
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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.