Finding the Fourth Proportional to 2,138,706.48, 2,951,451.28 and 1,171,931.04
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Solution
The fourth proportional to 2,138,706.48, 2,951,451.28 and 1,171,931.04 is: 1,617,284.75
Step by Step Solution
- Step 1: Write the proportion equation
2,138,706.48 : 2,951,451.28 = 1,171,931.04 : x - Step 2: Convert to fraction form
2,138,706.48/2,951,451.28 = 1,171,931.04/x - Step 3: Cross multiply
2,138,706.48x = 2,951,451.28 × 1,171,931.04 - Step 4: Simplify right side
2,138,706.48x = 3,458,897,368,079.73 - Step 5: Solve for x
x = 3,458,897,368,079.73/2,138,706.48 - Step 6: Final answer
x = 1,617,284.75
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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.