Finding the Fourth Proportional to 990,775.68, 1,367,297.28 and 582,904.32
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Solution
The fourth proportional to 990,775.68, 1,367,297.28 and 582,904.32 is: 804,423.75
Step by Step Solution
- Step 1: Write the proportion equation
990,775.68 : 1,367,297.28 = 582,904.32 : x - Step 2: Convert to fraction form
990,775.68/1,367,297.28 = 582,904.32/x - Step 3: Cross multiply
990,775.68x = 1,367,297.28 × 582,904.32 - Step 4: Simplify right side
990,775.68x = 797,003,491,236.25 - Step 5: Solve for x
x = 797,003,491,236.25/990,775.68 - Step 6: Final answer
x = 804,423.75
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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.