Finding the Fourth Proportional to 828,381.88, 1,242,427.02 and 221,177.74
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Solution
The fourth proportional to 828,381.88, 1,242,427.02 and 221,177.74 is: 331,727.68
Step by Step Solution
- Step 1: Write the proportion equation
828,381.88 : 1,242,427.02 = 221,177.74 : x - Step 2: Convert to fraction form
828,381.88/1,242,427.02 = 221,177.74/x - Step 3: Cross multiply
828,381.88x = 1,242,427.02 × 221,177.74 - Step 4: Simplify right side
828,381.88x = 274,797,200,398.54 - Step 5: Solve for x
x = 274,797,200,398.54/828,381.88 - Step 6: Final answer
x = 331,727.68
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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.