Finding the Fourth Proportional to 547,283.74, 820,925.61 and 398,471.03
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Solution
The fourth proportional to 547,283.74, 820,925.61 and 398,471.03 is: 597,706.55
Step by Step Solution
- Step 1: Write the proportion equation
547,283.74 : 820,925.61 = 398,471.03 : x - Step 2: Convert to fraction form
547,283.74/820,925.61 = 398,471.03/x - Step 3: Cross multiply
547,283.74x = 820,925.61 × 398,471.03 - Step 4: Simplify right side
547,283.74x = 327,115,073,370.08 - Step 5: Solve for x
x = 327,115,073,370.08/547,283.74 - Step 6: Final answer
x = 597,706.55
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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.