Finding the Fourth Proportional to 910,721.80, 1,366,082.70 and 349,769.80
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Solution
The fourth proportional to 910,721.80, 1,366,082.70 and 349,769.80 is: 524,654.70
Step by Step Solution
- Step 1: Write the proportion equation
910,721.80 : 1,366,082.70 = 349,769.80 : x - Step 2: Convert to fraction form
910,721.80/1,366,082.70 = 349,769.80/x - Step 3: Cross multiply
910,721.80x = 1,366,082.70 × 349,769.80 - Step 4: Simplify right side
910,721.80x = 477,814,472,762.46 - Step 5: Solve for x
x = 477,814,472,762.46/910,721.80 - Step 6: Final answer
x = 524,654.70
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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.