Finding the Fourth Proportional to 2,128,068.13, 2,936,804.90 and 1,161,251.47
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Solution
The fourth proportional to 2,128,068.13, 2,936,804.90 and 1,161,251.47 is: 1,602,565.70
Step by Step Solution
- Step 1: Write the proportion equation
2,128,068.13 : 2,936,804.90 = 1,161,251.47 : x - Step 2: Convert to fraction form
2,128,068.13/2,936,804.90 = 1,161,251.47/x - Step 3: Cross multiply
2,128,068.13x = 2,936,804.90 × 1,161,251.47 - Step 4: Simplify right side
2,128,068.13x = 3,410,368,992,544.18 - Step 5: Solve for x
x = 3,410,368,992,544.18/2,128,068.13 - Step 6: Final answer
x = 1,602,565.70
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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.