Finding the Fourth Proportional to 755,886.71, 1,043,125.09 and 411,721.58
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Solution
The fourth proportional to 755,886.71, 1,043,125.09 and 411,721.58 is: 568,176.56
Step by Step Solution
- Step 1: Write the proportion equation
755,886.71 : 1,043,125.09 = 411,721.58 : x - Step 2: Convert to fraction form
755,886.71/1,043,125.09 = 411,721.58/x - Step 3: Cross multiply
755,886.71x = 1,043,125.09 × 411,721.58 - Step 4: Simplify right side
755,886.71x = 429,477,111,770.95 - Step 5: Solve for x
x = 429,477,111,770.95/755,886.71 - Step 6: Final answer
x = 568,176.56
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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.