Finding the Fourth Proportional to 762,193.80, 1,051,344.36 and 489,792.96
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Solution
The fourth proportional to 762,193.80, 1,051,344.36 and 489,792.96 is: 675,603.85
Step by Step Solution
- Step 1: Write the proportion equation
762,193.80 : 1,051,344.36 = 489,792.96 : x - Step 2: Convert to fraction form
762,193.80/1,051,344.36 = 489,792.96/x - Step 3: Cross multiply
762,193.80x = 1,051,344.36 × 489,792.96 - Step 4: Simplify right side
762,193.80x = 514,941,066,063.71 - Step 5: Solve for x
x = 514,941,066,063.71/762,193.80 - Step 6: Final answer
x = 675,603.85
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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.