Finding the Fourth Proportional to 686,596.20, 1,029,894.30 and 213,277.80
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Solution
The fourth proportional to 686,596.20, 1,029,894.30 and 213,277.80 is: 319,916.70
Step by Step Solution
- Step 1: Write the proportion equation
686,596.20 : 1,029,894.30 = 213,277.80 : x - Step 2: Convert to fraction form
686,596.20/1,029,894.30 = 213,277.80/x - Step 3: Cross multiply
686,596.20x = 1,029,894.30 × 213,277.80 - Step 4: Simplify right side
686,596.20x = 219,653,590,536.54 - Step 5: Solve for x
x = 219,653,590,536.54/686,596.20 - Step 6: Final answer
x = 319,916.70
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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.