Finding the Fourth Proportional to 2,146,340.93, 2,961,304.56 and 1,286,587.49
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Solution
The fourth proportional to 2,146,340.93, 2,961,304.56 and 1,286,587.49 is: 1,775,103.55
Step by Step Solution
- Step 1: Write the proportion equation
2,146,340.93 : 2,961,304.56 = 1,286,587.49 : x - Step 2: Convert to fraction form
2,146,340.93/2,961,304.56 = 1,286,587.49/x - Step 3: Cross multiply
2,146,340.93x = 2,961,304.56 × 1,286,587.49 - Step 4: Simplify right side
2,146,340.93x = 3,809,977,386,169.43 - Step 5: Solve for x
x = 3,809,977,386,169.43/2,146,340.93 - Step 6: Final answer
x = 1,775,103.55
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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.