Finding the Fourth Proportional to 660,296.75, 990,782.91 and 314,471.75
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Solution
The fourth proportional to 660,296.75, 990,782.91 and 314,471.75 is: 471,868.50
Step by Step Solution
- Step 1: Write the proportion equation
660,296.75 : 990,782.91 = 314,471.75 : x - Step 2: Convert to fraction form
660,296.75/990,782.91 = 314,471.75/x - Step 3: Cross multiply
660,296.75x = 990,782.91 × 314,471.75 - Step 4: Simplify right side
660,296.75x = 311,573,235,577.79 - Step 5: Solve for x
x = 311,573,235,577.79/660,296.75 - Step 6: Final answer
x = 471,868.50
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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.