Finding the Fourth Proportional to 1,913,411.97, 2,640,389.81 and 1,053,924.21
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Solution
The fourth proportional to 1,913,411.97, 2,640,389.81 and 1,053,924.21 is: 1,454,350.02
Step by Step Solution
- Step 1: Write the proportion equation
1,913,411.97 : 2,640,389.81 = 1,053,924.21 : x - Step 2: Convert to fraction form
1,913,411.97/2,640,389.81 = 1,053,924.21/x - Step 3: Cross multiply
1,913,411.97x = 2,640,389.81 × 1,053,924.21 - Step 4: Simplify right side
1,913,411.97x = 2,782,770,739,326.68 - Step 5: Solve for x
x = 2,782,770,739,326.68/1,913,411.97 - Step 6: Final answer
x = 1,454,350.02
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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.