Finding the Fourth Proportional to 770,382.72, 1,154,947.75 and 321,437.99
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Solution
The fourth proportional to 770,382.72, 1,154,947.75 and 321,437.99 is: 481,895.65
Step by Step Solution
- Step 1: Write the proportion equation
770,382.72 : 1,154,947.75 = 321,437.99 : x - Step 2: Convert to fraction form
770,382.72/1,154,947.75 = 321,437.99/x - Step 3: Cross multiply
770,382.72x = 1,154,947.75 × 321,437.99 - Step 4: Simplify right side
770,382.72x = 371,244,085,398.80 - Step 5: Solve for x
x = 371,244,085,398.80/770,382.72 - Step 6: Final answer
x = 481,895.65
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.