Finding the Fourth Proportional to 2,120,574.96, 2,928,159.23 and 1,966,717.08
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Solution
The fourth proportional to 2,120,574.96, 2,928,159.23 and 1,966,717.08 is: 2,715,707.23
Step by Step Solution
- Step 1: Write the proportion equation
2,120,574.96 : 2,928,159.23 = 1,966,717.08 : x - Step 2: Convert to fraction form
2,120,574.96/2,928,159.23 = 1,966,717.08/x - Step 3: Cross multiply
2,120,574.96x = 2,928,159.23 × 1,966,717.08 - Step 4: Simplify right side
2,120,574.96x = 5,758,860,760,767.06 - Step 5: Solve for x
x = 5,758,860,760,767.06/2,120,574.96 - Step 6: Final answer
x = 2,715,707.23
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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.