Finding the Fourth Proportional to 1,913,063.08, 2,640,146.46 and 1,053,623.12
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Solution
The fourth proportional to 1,913,063.08, 2,640,146.46 and 1,053,623.12 is: 1,454,065.67
Step by Step Solution
- Step 1: Write the proportion equation
1,913,063.08 : 2,640,146.46 = 1,053,623.12 : x - Step 2: Convert to fraction form
1,913,063.08/2,640,146.46 = 1,053,623.12/x - Step 3: Cross multiply
1,913,063.08x = 2,640,146.46 × 1,053,623.12 - Step 4: Simplify right side
1,913,063.08x = 2,781,719,350,442.16 - Step 5: Solve for x
x = 2,781,719,350,442.16/1,913,063.08 - Step 6: Final answer
x = 1,454,065.67
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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.