Finding the Fourth Proportional to 2,164,372.97, 2,986,109.38 and 1,246,583.73
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Solution
The fourth proportional to 2,164,372.97, 2,986,109.38 and 1,246,583.73 is: 1,719,867.81
Step by Step Solution
- Step 1: Write the proportion equation
2,164,372.97 : 2,986,109.38 = 1,246,583.73 : x - Step 2: Convert to fraction form
2,164,372.97/2,986,109.38 = 1,246,583.73/x - Step 3: Cross multiply
2,164,372.97x = 2,986,109.38 × 1,246,583.73 - Step 4: Simplify right side
2,164,372.97x = 3,722,435,381,864.53 - Step 5: Solve for x
x = 3,722,435,381,864.53/2,164,372.97 - Step 6: Final answer
x = 1,719,867.81
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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.