Finding the Fourth Proportional to 858,893.14, 1,288,490.64 and 326,460.70
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Solution
The fourth proportional to 858,893.14, 1,288,490.64 and 326,460.70 is: 489,748.42
Step by Step Solution
- Step 1: Write the proportion equation
858,893.14 : 1,288,490.64 = 326,460.70 : x - Step 2: Convert to fraction form
858,893.14/1,288,490.64 = 326,460.70/x - Step 3: Cross multiply
858,893.14x = 1,288,490.64 × 326,460.70 - Step 4: Simplify right side
858,893.14x = 420,641,556,277.85 - Step 5: Solve for x
x = 420,641,556,277.85/858,893.14 - Step 6: Final answer
x = 489,748.42
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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.