Finding the Fourth Proportional to 625,118.13, 862,662.24 and 338,639.40
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Solution
The fourth proportional to 625,118.13, 862,662.24 and 338,639.40 is: 467,321.95
Step by Step Solution
- Step 1: Write the proportion equation
625,118.13 : 862,662.24 = 338,639.40 : x - Step 2: Convert to fraction form
625,118.13/862,662.24 = 338,639.40/x - Step 3: Cross multiply
625,118.13x = 862,662.24 × 338,639.40 - Step 4: Simplify right side
625,118.13x = 292,131,423,356.26 - Step 5: Solve for x
x = 292,131,423,356.26/625,118.13 - Step 6: Final answer
x = 467,321.95
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1.5x scale
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.