Finding the Fourth Proportional to 1,980,869.52, 2,736,073.68 and 1,527,489.84
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Solution
The fourth proportional to 1,980,869.52, 2,736,073.68 and 1,527,489.84 is: 2,109,843.53
Step by Step Solution
- Step 1: Write the proportion equation
1,980,869.52 : 2,736,073.68 = 1,527,489.84 : x - Step 2: Convert to fraction form
1,980,869.52/2,736,073.68 = 1,527,489.84/x - Step 3: Cross multiply
1,980,869.52x = 2,736,073.68 × 1,527,489.84 - Step 4: Simplify right side
1,980,869.52x = 4,179,324,747,691.41 - Step 5: Solve for x
x = 4,179,324,747,691.41/1,980,869.52 - Step 6: Final answer
x = 2,109,843.53
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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.