Finding the Fourth Proportional to 842,821.75, 1,264,233.84 and 344,185.75
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Solution
The fourth proportional to 842,821.75, 1,264,233.84 and 344,185.75 is: 516,279.12
Step by Step Solution
- Step 1: Write the proportion equation
842,821.75 : 1,264,233.84 = 344,185.75 : x - Step 2: Convert to fraction form
842,821.75/1,264,233.84 = 344,185.75/x - Step 3: Cross multiply
842,821.75x = 1,264,233.84 × 344,185.75 - Step 4: Simplify right side
842,821.75x = 435,131,272,395.78 - Step 5: Solve for x
x = 435,131,272,395.78/842,821.75 - Step 6: Final answer
x = 516,279.12
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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.