Finding the Fourth Proportional to 655,009.80, 982,514.70 and 489,121.80
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Solution
The fourth proportional to 655,009.80, 982,514.70 and 489,121.80 is: 733,682.70
Step by Step Solution
- Step 1: Write the proportion equation
655,009.80 : 982,514.70 = 489,121.80 : x - Step 2: Convert to fraction form
655,009.80/982,514.70 = 489,121.80/x - Step 3: Cross multiply
655,009.80x = 982,514.70 × 489,121.80 - Step 4: Simplify right side
655,009.80x = 480,569,358,590.46 - Step 5: Solve for x
x = 480,569,358,590.46/655,009.80 - Step 6: Final answer
x = 733,682.70
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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.