Finding the Fourth Proportional to 1,913,278.58, 2,640,324.15 and 1,053,838.81
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Solution
The fourth proportional to 1,913,278.58, 2,640,324.15 and 1,053,838.81 is: 1,454,297.40
Step by Step Solution
- Step 1: Write the proportion equation
1,913,278.58 : 2,640,324.15 = 1,053,838.81 : x - Step 2: Convert to fraction form
1,913,278.58/2,640,324.15 = 1,053,838.81/x - Step 3: Cross multiply
1,913,278.58x = 2,640,324.15 × 1,053,838.81 - Step 4: Simplify right side
1,913,278.58x = 2,782,476,053,649.45 - Step 5: Solve for x
x = 2,782,476,053,649.45/1,913,278.58 - Step 6: Final answer
x = 1,454,297.40
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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.