Finding the Fourth Proportional to 821,324.13, 1,133,415.36 and 458,753.15
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Solution
The fourth proportional to 821,324.13, 1,133,415.36 and 458,753.15 is: 633,072.67
Step by Step Solution
- Step 1: Write the proportion equation
821,324.13 : 1,133,415.36 = 458,753.15 : x - Step 2: Convert to fraction form
821,324.13/1,133,415.36 = 458,753.15/x - Step 3: Cross multiply
821,324.13x = 1,133,415.36 × 458,753.15 - Step 4: Simplify right side
821,324.13x = 519,957,860,991.31 - Step 5: Solve for x
x = 519,957,860,991.31/821,324.13 - Step 6: Final answer
x = 633,072.67
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1.5x scale
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.