Finding the Fourth Proportional to 547,730.81, 755,738.97 and 318,151.68
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Solution
The fourth proportional to 547,730.81, 755,738.97 and 318,151.68 is: 438,974.07
Step by Step Solution
- Step 1: Write the proportion equation
547,730.81 : 755,738.97 = 318,151.68 : x - Step 2: Convert to fraction form
547,730.81/755,738.97 = 318,151.68/x - Step 3: Cross multiply
547,730.81x = 755,738.97 × 318,151.68 - Step 4: Simplify right side
547,730.81x = 240,439,622,946.97 - Step 5: Solve for x
x = 240,439,622,946.97/547,730.81 - Step 6: Final answer
x = 438,974.07
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.