Finding the Fourth Proportional to 621,471.24, 857,629.08 and 349,534.80
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Solution
The fourth proportional to 621,471.24, 857,629.08 and 349,534.80 is: 482,357.33
Step by Step Solution
- Step 1: Write the proportion equation
621,471.24 : 857,629.08 = 349,534.80 : x - Step 2: Convert to fraction form
621,471.24/857,629.08 = 349,534.80/x - Step 3: Cross multiply
621,471.24x = 857,629.08 × 349,534.80 - Step 4: Simplify right side
621,471.24x = 299,771,208,951.98 - Step 5: Solve for x
x = 299,771,208,951.98/621,471.24 - Step 6: Final answer
x = 482,357.33
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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.