Finding the Fourth Proportional to 686,604.42, 1,029,906.72 and 213,289.74
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Solution
The fourth proportional to 686,604.42, 1,029,906.72 and 213,289.74 is: 319,934.64
Step by Step Solution
- Step 1: Write the proportion equation
686,604.42 : 1,029,906.72 = 213,289.74 : x - Step 2: Convert to fraction form
686,604.42/1,029,906.72 = 213,289.74/x - Step 3: Cross multiply
686,604.42x = 1,029,906.72 × 213,289.74 - Step 4: Simplify right side
686,604.42x = 219,668,536,533.05 - Step 5: Solve for x
x = 219,668,536,533.05/686,604.42 - Step 6: Final answer
x = 319,934.64
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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.