Finding the Fourth Proportional to 547,397.10, 755,763.45 and 489,936.92
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Solution
The fourth proportional to 547,397.10, 755,763.45 and 489,936.92 is: 676,431.09
Step by Step Solution
- Step 1: Write the proportion equation
547,397.10 : 755,763.45 = 489,936.92 : x - Step 2: Convert to fraction form
547,397.10/755,763.45 = 489,936.92/x - Step 3: Cross multiply
547,397.10x = 755,763.45 × 489,936.92 - Step 4: Simplify right side
547,397.10x = 370,276,416,941.57 - Step 5: Solve for x
x = 370,276,416,941.57/547,397.10 - Step 6: Final answer
x = 676,431.09
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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.