Finding the Fourth Proportional to 820,570.36, 1,132,444.14 and 458,064.97
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Solution
The fourth proportional to 820,570.36, 1,132,444.14 and 458,064.97 is: 632,161.50
Step by Step Solution
- Step 1: Write the proportion equation
820,570.36 : 1,132,444.14 = 458,064.97 : x - Step 2: Convert to fraction form
820,570.36/1,132,444.14 = 458,064.97/x - Step 3: Cross multiply
820,570.36x = 1,132,444.14 × 458,064.97 - Step 4: Simplify right side
820,570.36x = 518,732,991,015.78 - Step 5: Solve for x
x = 518,732,991,015.78/820,570.36 - Step 6: Final answer
x = 632,161.50
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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.