Finding the Fourth Proportional to 621,636.63, 857,849.99 and 349,704.44
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Solution
The fourth proportional to 621,636.63, 857,849.99 and 349,704.44 is: 482,587.31
Step by Step Solution
- Step 1: Write the proportion equation
621,636.63 : 857,849.99 = 349,704.44 : x - Step 2: Convert to fraction form
621,636.63/857,849.99 = 349,704.44/x - Step 3: Cross multiply
621,636.63x = 857,849.99 × 349,704.44 - Step 4: Simplify right side
621,636.63x = 299,993,949,503.21 - Step 5: Solve for x
x = 299,993,949,503.21/621,636.63 - Step 6: Final answer
x = 482,587.31
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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.