Finding the Fourth Proportional to 395,721.36, 546,819.66 and 288,104.58
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Solution
The fourth proportional to 395,721.36, 546,819.66 and 288,104.58 is: 398,111.56
Step by Step Solution
- Step 1: Write the proportion equation
395,721.36 : 546,819.66 = 288,104.58 : x - Step 2: Convert to fraction form
395,721.36/546,819.66 = 288,104.58/x - Step 3: Cross multiply
395,721.36x = 546,819.66 × 288,104.58 - Step 4: Simplify right side
395,721.36x = 157,541,248,480.04 - Step 5: Solve for x
x = 157,541,248,480.04/395,721.36 - Step 6: Final answer
x = 398,111.56
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.