Finding the Fourth Proportional to 2,128,478.97, 3,190,819.64 and 780,326.81
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Solution
The fourth proportional to 2,128,478.97, 3,190,819.64 and 780,326.81 is: 1,169,794.09
Step by Step Solution
- Step 1: Write the proportion equation
2,128,478.97 : 3,190,819.64 = 780,326.81 : x - Step 2: Convert to fraction form
2,128,478.97/3,190,819.64 = 780,326.81/x - Step 3: Cross multiply
2,128,478.97x = 3,190,819.64 × 780,326.81 - Step 4: Simplify right side
2,128,478.97x = 2,489,882,121,024.75 - Step 5: Solve for x
x = 2,489,882,121,024.75/2,128,478.97 - Step 6: Final answer
x = 1,169,794.09
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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.