Finding the Fourth Proportional to 857,192.68, 1,285,798.74 and 324,569.08
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Solution
The fourth proportional to 857,192.68, 1,285,798.74 and 324,569.08 is: 486,857.30
Step by Step Solution
- Step 1: Write the proportion equation
857,192.68 : 1,285,798.74 = 324,569.08 : x - Step 2: Convert to fraction form
857,192.68/1,285,798.74 = 324,569.08/x - Step 3: Cross multiply
857,192.68x = 1,285,798.74 × 324,569.08 - Step 4: Simplify right side
857,192.68x = 417,330,514,106.96 - Step 5: Solve for x
x = 417,330,514,106.96/857,192.68 - Step 6: Final answer
x = 486,857.30
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1.5x scale
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.