Finding the Fourth Proportional to 621,885.36, 858,191.73 and 349,953.09
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Solution
The fourth proportional to 621,885.36, 858,191.73 and 349,953.09 is: 482,929.60
Step by Step Solution
- Step 1: Write the proportion equation
621,885.36 : 858,191.73 = 349,953.09 : x - Step 2: Convert to fraction form
621,885.36/858,191.73 = 349,953.09/x - Step 3: Cross multiply
621,885.36x = 858,191.73 × 349,953.09 - Step 4: Simplify right side
621,885.36x = 300,326,847,725.95 - Step 5: Solve for x
x = 300,326,847,725.95/621,885.36 - Step 6: Final answer
x = 482,929.60
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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.