Finding the Fourth Proportional to 3,451,696.09, 5,178,291.51 and 1,321,780.30
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Solution
The fourth proportional to 3,451,696.09, 5,178,291.51 and 1,321,780.30 is: 1,982,956.65
Step by Step Solution
- Step 1: Write the proportion equation
3,451,696.09 : 5,178,291.51 = 1,321,780.30 : x - Step 2: Convert to fraction form
3,451,696.09/5,178,291.51 = 1,321,780.30/x - Step 3: Cross multiply
3,451,696.09x = 5,178,291.51 × 1,321,780.30 - Step 4: Simplify right side
3,451,696.09x = 6,844,563,705,575.25 - Step 5: Solve for x
x = 6,844,563,705,575.25/3,451,696.09 - Step 6: Final answer
x = 1,982,956.65
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.