Finding the Fourth Proportional to 660,062.41, 990,431.24 and 314,236.68
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Solution
The fourth proportional to 660,062.41, 990,431.24 and 314,236.68 is: 471,515.75
Step by Step Solution
- Step 1: Write the proportion equation
660,062.41 : 990,431.24 = 314,236.68 : x - Step 2: Convert to fraction form
660,062.41/990,431.24 = 314,236.68/x - Step 3: Cross multiply
660,062.41x = 990,431.24 × 314,236.68 - Step 4: Simplify right side
660,062.41x = 311,229,824,625.88 - Step 5: Solve for x
x = 311,229,824,625.88/660,062.41 - Step 6: Final answer
x = 471,515.75
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.