Finding the Fourth Proportional to 686,605.92, 1,029,908.97 and 213,291.24
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Solution
The fourth proportional to 686,605.92, 1,029,908.97 and 213,291.24 is: 319,936.89
Step by Step Solution
- Step 1: Write the proportion equation
686,605.92 : 1,029,908.97 = 213,291.24 : x - Step 2: Convert to fraction form
686,605.92/1,029,908.97 = 213,291.24/x - Step 3: Cross multiply
686,605.92x = 1,029,908.97 × 213,291.24 - Step 4: Simplify right side
686,605.92x = 219,670,561,298.42 - Step 5: Solve for x
x = 219,670,561,298.42/686,605.92 - Step 6: Final answer
x = 319,936.89
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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.