Finding the Fourth Proportional to 621,394.46, 857,516.19 and 349,462.26
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Solution
The fourth proportional to 621,394.46, 857,516.19 and 349,462.26 is: 482,253.33
Step by Step Solution
- Step 1: Write the proportion equation
621,394.46 : 857,516.19 = 349,462.26 : x - Step 2: Convert to fraction form
621,394.46/857,516.19 = 349,462.26/x - Step 3: Cross multiply
621,394.46x = 857,516.19 × 349,462.26 - Step 4: Simplify right side
621,394.46x = 299,669,545,743.99 - Step 5: Solve for x
x = 299,669,545,743.99/621,394.46 - Step 6: Final answer
x = 482,253.33
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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.