Finding the Fourth Proportional to 828,871.08, 1,143,843.84 and 489,361.20
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Solution
The fourth proportional to 828,871.08, 1,143,843.84 and 489,361.20 is: 675,319.49
Step by Step Solution
- Step 1: Write the proportion equation
828,871.08 : 1,143,843.84 = 489,361.20 : x - Step 2: Convert to fraction form
828,871.08/1,143,843.84 = 489,361.20/x - Step 3: Cross multiply
828,871.08x = 1,143,843.84 × 489,361.20 - Step 4: Simplify right side
828,871.08x = 559,752,794,155.01 - Step 5: Solve for x
x = 559,752,794,155.01/828,871.08 - Step 6: Final answer
x = 675,319.49
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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.