Finding the Fourth Proportional to 805,311.68, 1,207,967.76 and 236,692.88
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Solution
The fourth proportional to 805,311.68, 1,207,967.76 and 236,692.88 is: 355,039.39
Step by Step Solution
- Step 1: Write the proportion equation
805,311.68 : 1,207,967.76 = 236,692.88 : x - Step 2: Convert to fraction form
805,311.68/1,207,967.76 = 236,692.88/x - Step 3: Cross multiply
805,311.68x = 1,207,967.76 × 236,692.88 - Step 4: Simplify right side
805,311.68x = 285,917,368,061.55 - Step 5: Solve for x
x = 285,917,368,061.55/805,311.68 - Step 6: Final answer
x = 355,039.39
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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.