Finding the Fourth Proportional to 881,311.26, 1,216,227.51 and 478,929.18
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Solution
The fourth proportional to 881,311.26, 1,216,227.51 and 478,929.18 is: 660,932.03
Step by Step Solution
- Step 1: Write the proportion equation
881,311.26 : 1,216,227.51 = 478,929.18 : x - Step 2: Convert to fraction form
881,311.26/1,216,227.51 = 478,929.18/x - Step 3: Cross multiply
881,311.26x = 1,216,227.51 × 478,929.18 - Step 4: Simplify right side
881,311.26x = 582,486,844,057.74 - Step 5: Solve for x
x = 582,486,844,057.74/881,311.26 - Step 6: Final answer
x = 660,932.03
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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.