Finding the Fourth Proportional to 818,426.29, 1,129,485.06 and 496,149.97
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Solution
The fourth proportional to 818,426.29, 1,129,485.06 and 496,149.97 is: 684,721.38
Step by Step Solution
- Step 1: Write the proportion equation
818,426.29 : 1,129,485.06 = 496,149.97 : x - Step 2: Convert to fraction form
818,426.29/1,129,485.06 = 496,149.97/x - Step 3: Cross multiply
818,426.29x = 1,129,485.06 × 496,149.97 - Step 4: Simplify right side
818,426.29x = 560,393,978,634.45 - Step 5: Solve for x
x = 560,393,978,634.45/818,426.29 - Step 6: Final answer
x = 684,721.38
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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.