Finding the Fourth Proportional to 783,981.60, 1,081,974.96 and 461,793.12
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Solution
The fourth proportional to 783,981.60, 1,081,974.96 and 461,793.12 is: 637,321.84
Step by Step Solution
- Step 1: Write the proportion equation
783,981.60 : 1,081,974.96 = 461,793.12 : x - Step 2: Convert to fraction form
783,981.60/1,081,974.96 = 461,793.12/x - Step 3: Cross multiply
783,981.60x = 1,081,974.96 × 461,793.12 - Step 4: Simplify right side
783,981.60x = 499,648,592,540.28 - Step 5: Solve for x
x = 499,648,592,540.28/783,981.60 - Step 6: Final answer
x = 637,321.84
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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.