Finding the Fourth Proportional to 422,381.47, 633,799.79 and 306,988.52
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Solution
The fourth proportional to 422,381.47, 633,799.79 and 306,988.52 is: 460,648.19
Step by Step Solution
- Step 1: Write the proportion equation
422,381.47 : 633,799.79 = 306,988.52 : x - Step 2: Convert to fraction form
422,381.47/633,799.79 = 306,988.52/x - Step 3: Cross multiply
422,381.47x = 633,799.79 × 306,988.52 - Step 4: Simplify right side
422,381.47x = 194,569,260,059.24 - Step 5: Solve for x
x = 194,569,260,059.24/422,381.47 - Step 6: Final answer
x = 460,648.19
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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.