Finding the Fourth Proportional to 828,979.80, 1,244,125.80 and 323,782.80
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Solution
The fourth proportional to 828,979.80, 1,244,125.80 and 323,782.80 is: 485,930.46
Step by Step Solution
- Step 1: Write the proportion equation
828,979.80 : 1,244,125.80 = 323,782.80 : x - Step 2: Convert to fraction form
828,979.80/1,244,125.80 = 323,782.80/x - Step 3: Cross multiply
828,979.80x = 1,244,125.80 × 323,782.80 - Step 4: Simplify right side
828,979.80x = 402,826,535,076.24 - Step 5: Solve for x
x = 402,826,535,076.24/828,979.80 - Step 6: Final answer
x = 485,930.46
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.