Finding the Fourth Proportional to 760,629.88, 1,139,262.99 and 520,173.97
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Solution
The fourth proportional to 760,629.88, 1,139,262.99 and 520,173.97 is: 779,110.80
Step by Step Solution
- Step 1: Write the proportion equation
760,629.88 : 1,139,262.99 = 520,173.97 : x - Step 2: Convert to fraction form
760,629.88/1,139,262.99 = 520,173.97/x - Step 3: Cross multiply
760,629.88x = 1,139,262.99 × 520,173.97 - Step 4: Simplify right side
760,629.88x = 592,614,952,382.37 - Step 5: Solve for x
x = 592,614,952,382.37/760,629.88 - Step 6: Final answer
x = 779,110.80
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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.