Finding the Fourth Proportional to 828,209.48, 1,142,998.12 and 460,755.84
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Solution
The fourth proportional to 828,209.48, 1,142,998.12 and 460,755.84 is: 635,881.48
Step by Step Solution
- Step 1: Write the proportion equation
828,209.48 : 1,142,998.12 = 460,755.84 : x - Step 2: Convert to fraction form
828,209.48/1,142,998.12 = 460,755.84/x - Step 3: Cross multiply
828,209.48x = 1,142,998.12 × 460,755.84 - Step 4: Simplify right side
828,209.48x = 526,643,063,761.21 - Step 5: Solve for x
x = 526,643,063,761.21/828,209.48 - Step 6: Final answer
x = 635,881.48
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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.