Finding the Fourth Proportional to 589,119.75, 812,916.81 and 330,960.87
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Solution
The fourth proportional to 589,119.75, 812,916.81 and 330,960.87 is: 456,687.55
Step by Step Solution
- Step 1: Write the proportion equation
589,119.75 : 812,916.81 = 330,960.87 : x - Step 2: Convert to fraction form
589,119.75/812,916.81 = 330,960.87/x - Step 3: Cross multiply
589,119.75x = 812,916.81 × 330,960.87 - Step 4: Simplify right side
589,119.75x = 269,043,654,675.23 - Step 5: Solve for x
x = 269,043,654,675.23/589,119.75 - Step 6: Final answer
x = 456,687.55
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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.