Finding the Fourth Proportional to 912,231.81, 1,366,844.85 and 312,863.99
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Solution
The fourth proportional to 912,231.81, 1,366,844.85 and 312,863.99 is: 468,780.55
Step by Step Solution
- Step 1: Write the proportion equation
912,231.81 : 1,366,844.85 = 312,863.99 : x - Step 2: Convert to fraction form
912,231.81/1,366,844.85 = 312,863.99/x - Step 3: Cross multiply
912,231.81x = 1,366,844.85 × 312,863.99 - Step 4: Simplify right side
912,231.81x = 427,636,526,647.73 - Step 5: Solve for x
x = 427,636,526,647.73/912,231.81 - Step 6: Final answer
x = 468,780.55
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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.