Finding the Fourth Proportional to 816,750.76, 1,127,143.44 and 449,243.45
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Solution
The fourth proportional to 816,750.76, 1,127,143.44 and 449,243.45 is: 619,971.02
Step by Step Solution
- Step 1: Write the proportion equation
816,750.76 : 1,127,143.44 = 449,243.45 : x - Step 2: Convert to fraction form
816,750.76/1,127,143.44 = 449,243.45/x - Step 3: Cross multiply
816,750.76x = 1,127,143.44 × 449,243.45 - Step 4: Simplify right side
816,750.76x = 506,361,800,310.09 - Step 5: Solve for x
x = 506,361,800,310.09/816,750.76 - Step 6: Final answer
x = 619,971.02
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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.