Finding the Fourth Proportional to 891,807.21, 1,231,716.11 and 587,245.19
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Solution
The fourth proportional to 891,807.21, 1,231,716.11 and 587,245.19 is: 811,071.43
Step by Step Solution
- Step 1: Write the proportion equation
891,807.21 : 1,231,716.11 = 587,245.19 : x - Step 2: Convert to fraction form
891,807.21/1,231,716.11 = 587,245.19/x - Step 3: Cross multiply
891,807.21x = 1,231,716.11 × 587,245.19 - Step 4: Simplify right side
891,807.21x = 723,319,351,948.21 - Step 5: Solve for x
x = 723,319,351,948.21/891,807.21 - Step 6: Final answer
x = 811,071.43
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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.