Finding the Fourth Proportional to 1,640,265.97, 2,263,568.45 and 915,113.80
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Solution
The fourth proportional to 1,640,265.97, 2,263,568.45 and 915,113.80 is: 1,262,857.83
Step by Step Solution
- Step 1: Write the proportion equation
1,640,265.97 : 2,263,568.45 = 915,113.80 : x - Step 2: Convert to fraction form
1,640,265.97/2,263,568.45 = 915,113.80/x - Step 3: Cross multiply
1,640,265.97x = 2,263,568.45 × 915,113.80 - Step 4: Simplify right side
1,640,265.97x = 2,071,422,709,946.20 - Step 5: Solve for x
x = 2,071,422,709,946.20/1,640,265.97 - Step 6: Final answer
x = 1,262,857.83
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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.