Finding the Fourth Proportional to 804,562.20, 1,207,620.90 and 489,634.20
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Solution
The fourth proportional to 804,562.20, 1,207,620.90 and 489,634.20 is: 734,924.53
Step by Step Solution
- Step 1: Write the proportion equation
804,562.20 : 1,207,620.90 = 489,634.20 : x - Step 2: Convert to fraction form
804,562.20/1,207,620.90 = 489,634.20/x - Step 3: Cross multiply
804,562.20x = 1,207,620.90 × 489,634.20 - Step 4: Simplify right side
804,562.20x = 591,292,493,274.78 - Step 5: Solve for x
x = 591,292,493,274.78/804,562.20 - Step 6: Final answer
x = 734,924.53
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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.