Finding the Fourth Proportional to 660,822.15, 990,224.01 and 491,523.75
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Solution
The fourth proportional to 660,822.15, 990,224.01 and 491,523.75 is: 736,534.96
Step by Step Solution
- Step 1: Write the proportion equation
660,822.15 : 990,224.01 = 491,523.75 : x - Step 2: Convert to fraction form
660,822.15/990,224.01 = 491,523.75/x - Step 3: Cross multiply
660,822.15x = 990,224.01 × 491,523.75 - Step 4: Simplify right side
660,822.15x = 486,718,618,735.24 - Step 5: Solve for x
x = 486,718,618,735.24/660,822.15 - Step 6: Final answer
x = 736,534.96
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1.5x scale
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.