Finding the Fourth Proportional to 625,114.60, 862,660.26 and 338,633.80
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Solution
The fourth proportional to 625,114.60, 862,660.26 and 338,633.80 is: 467,315.79
Step by Step Solution
- Step 1: Write the proportion equation
625,114.60 : 862,660.26 = 338,633.80 : x - Step 2: Convert to fraction form
625,114.60/862,660.26 = 338,633.80/x - Step 3: Cross multiply
625,114.60x = 862,660.26 × 338,633.80 - Step 4: Simplify right side
625,114.60x = 292,125,921,952.79 - Step 5: Solve for x
x = 292,125,921,952.79/625,114.60 - Step 6: Final answer
x = 467,315.79
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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.