Finding the Fourth Proportional to 511,812.84, 706,302.68 and 285,472.92
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Solution
The fourth proportional to 511,812.84, 706,302.68 and 285,472.92 is: 393,953.17
Step by Step Solution
- Step 1: Write the proportion equation
511,812.84 : 706,302.68 = 285,472.92 : x - Step 2: Convert to fraction form
511,812.84/706,302.68 = 285,472.92/x - Step 3: Cross multiply
511,812.84x = 706,302.68 × 285,472.92 - Step 4: Simplify right side
511,812.84x = 201,630,288,463.43 - Step 5: Solve for x
x = 201,630,288,463.43/511,812.84 - Step 6: Final answer
x = 393,953.17
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.