Finding the Fourth Proportional to 858,951.19, 1,288,213.88 and 290,319.66
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Solution
The fourth proportional to 858,951.19, 1,288,213.88 and 290,319.66 is: 435,407.53
Step by Step Solution
- Step 1: Write the proportion equation
858,951.19 : 1,288,213.88 = 290,319.66 : x - Step 2: Convert to fraction form
858,951.19/1,288,213.88 = 290,319.66/x - Step 3: Cross multiply
858,951.19x = 1,288,213.88 × 290,319.66 - Step 4: Simplify right side
858,951.19x = 373,993,815,648.88 - Step 5: Solve for x
x = 373,993,815,648.88/858,951.19 - Step 6: Final answer
x = 435,407.53
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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.