Finding the Fourth Proportional to 912,581.66, 1,375,033.10 and 756,138.68
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Solution
The fourth proportional to 912,581.66, 1,375,033.10 and 756,138.68 is: 1,139,312.52
Step by Step Solution
- Step 1: Write the proportion equation
912,581.66 : 1,375,033.10 = 756,138.68 : x - Step 2: Convert to fraction form
912,581.66/1,375,033.10 = 756,138.68/x - Step 3: Cross multiply
912,581.66x = 1,375,033.10 × 756,138.68 - Step 4: Simplify right side
912,581.66x = 1,039,715,713,190.31 - Step 5: Solve for x
x = 1,039,715,713,190.31/912,581.66 - Step 6: Final answer
x = 1,139,312.52
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.