Finding the Fourth Proportional to 893,135.19, 1,232,540.55 and 485,245.11
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Solution
The fourth proportional to 893,135.19, 1,232,540.55 and 485,245.11 is: 669,645.85
Step by Step Solution
- Step 1: Write the proportion equation
893,135.19 : 1,232,540.55 = 485,245.11 : x - Step 2: Convert to fraction form
893,135.19/1,232,540.55 = 485,245.11/x - Step 3: Cross multiply
893,135.19x = 1,232,540.55 × 485,245.11 - Step 4: Simplify right side
893,135.19x = 598,084,274,764.21 - Step 5: Solve for x
x = 598,084,274,764.21/893,135.19 - Step 6: Final answer
x = 669,645.85
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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.