Finding the Fourth Proportional to 876,653.19, 1,209,982.86 and 514,193.85
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Solution
The fourth proportional to 876,653.19, 1,209,982.86 and 514,193.85 is: 709,705.68
Step by Step Solution
- Step 1: Write the proportion equation
876,653.19 : 1,209,982.86 = 514,193.85 : x - Step 2: Convert to fraction form
876,653.19/1,209,982.86 = 514,193.85/x - Step 3: Cross multiply
876,653.19x = 1,209,982.86 × 514,193.85 - Step 4: Simplify right side
876,653.19x = 622,165,745,217.41 - Step 5: Solve for x
x = 622,165,745,217.41/876,653.19 - Step 6: Final answer
x = 709,705.68
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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.