Finding the Fourth Proportional to 1,994,212.28, 2,992,072.18 and 780,656.12
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Solution
The fourth proportional to 1,994,212.28, 2,992,072.18 and 780,656.12 is: 1,171,279.25
Step by Step Solution
- Step 1: Write the proportion equation
1,994,212.28 : 2,992,072.18 = 780,656.12 : x - Step 2: Convert to fraction form
1,994,212.28/2,992,072.18 = 780,656.12/x - Step 3: Cross multiply
1,994,212.28x = 2,992,072.18 × 780,656.12 - Step 4: Simplify right side
1,994,212.28x = 2,335,779,458,798.74 - Step 5: Solve for x
x = 2,335,779,458,798.74/1,994,212.28 - Step 6: Final answer
x = 1,171,279.25
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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.