Finding the Fourth Proportional to 828,520.44, 1,143,347.36 and 465,944.19
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Solution
The fourth proportional to 828,520.44, 1,143,347.36 and 465,944.19 is: 642,996.88
Step by Step Solution
- Step 1: Write the proportion equation
828,520.44 : 1,143,347.36 = 465,944.19 : x - Step 2: Convert to fraction form
828,520.44/1,143,347.36 = 465,944.19/x - Step 3: Cross multiply
828,520.44x = 1,143,347.36 × 465,944.19 - Step 4: Simplify right side
828,520.44x = 532,736,059,543.84 - Step 5: Solve for x
x = 532,736,059,543.84/828,520.44 - Step 6: Final answer
x = 642,996.88
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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.