Finding the Fourth Proportional to 511,511.11, 705,869.15 and 282,078.08
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Solution
The fourth proportional to 511,511.11, 705,869.15 and 282,078.08 is: 389,258.83
Step by Step Solution
- Step 1: Write the proportion equation
511,511.11 : 705,869.15 = 282,078.08 : x - Step 2: Convert to fraction form
511,511.11/705,869.15 = 282,078.08/x - Step 3: Cross multiply
511,511.11x = 705,869.15 × 282,078.08 - Step 4: Simplify right side
511,511.11x = 199,110,214,563.23 - Step 5: Solve for x
x = 199,110,214,563.23/511,511.11 - Step 6: Final answer
x = 389,258.83
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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.