Finding the Fourth Proportional to 547,859.06, 756,031.42 and 306,143.62
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Solution
The fourth proportional to 547,859.06, 756,031.42 and 306,143.62 is: 422,470.32
Step by Step Solution
- Step 1: Write the proportion equation
547,859.06 : 756,031.42 = 306,143.62 : x - Step 2: Convert to fraction form
547,859.06/756,031.42 = 306,143.62/x - Step 3: Cross multiply
547,859.06x = 756,031.42 × 306,143.62 - Step 4: Simplify right side
547,859.06x = 231,454,191,972.38 - Step 5: Solve for x
x = 231,454,191,972.38/547,859.06 - Step 6: Final answer
x = 422,470.32
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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.