Finding the Fourth Proportional to 812,481.84, 1,121,210.64 and 449,897.76
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Solution
The fourth proportional to 812,481.84, 1,121,210.64 and 449,897.76 is: 620,850.99
Step by Step Solution
- Step 1: Write the proportion equation
812,481.84 : 1,121,210.64 = 449,897.76 : x - Step 2: Convert to fraction form
812,481.84/1,121,210.64 = 449,897.76/x - Step 3: Cross multiply
812,481.84x = 1,121,210.64 × 449,897.76 - Step 4: Simplify right side
812,481.84x = 504,430,155,424.17 - Step 5: Solve for x
x = 504,430,155,424.17/812,481.84 - Step 6: Final answer
x = 620,850.99
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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.