Finding the Fourth Proportional to 760,497.74, 1,049,486.90 and 420,965.99
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Solution
The fourth proportional to 760,497.74, 1,049,486.90 and 420,965.99 is: 580,933.08
Step by Step Solution
- Step 1: Write the proportion equation
760,497.74 : 1,049,486.90 = 420,965.99 : x - Step 2: Convert to fraction form
760,497.74/1,049,486.90 = 420,965.99/x - Step 3: Cross multiply
760,497.74x = 1,049,486.90 × 420,965.99 - Step 4: Simplify right side
760,497.74x = 441,798,291,850.53 - Step 5: Solve for x
x = 441,798,291,850.53/760,497.74 - Step 6: Final answer
x = 580,933.08
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1.5x scale
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.