Finding the Fourth Proportional to 809,810.28, 1,118,043.63 and 515,626.03
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Solution
The fourth proportional to 809,810.28, 1,118,043.63 and 515,626.03 is: 711,885.75
Step by Step Solution
- Step 1: Write the proportion equation
809,810.28 : 1,118,043.63 = 515,626.03 : x - Step 2: Convert to fraction form
809,810.28/1,118,043.63 = 515,626.03/x - Step 3: Cross multiply
809,810.28x = 1,118,043.63 × 515,626.03 - Step 4: Simplify right side
809,810.28x = 576,492,397,014.62 - Step 5: Solve for x
x = 576,492,397,014.62/809,810.28 - Step 6: Final answer
x = 711,885.75
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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.