Finding the Fourth Proportional to 2,121,862.68, 2,928,167.64 and 1,154,989.92
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Solution
The fourth proportional to 2,121,862.68, 2,928,167.64 and 1,154,989.92 is: 1,593,884.53
Step by Step Solution
- Step 1: Write the proportion equation
2,121,862.68 : 2,928,167.64 = 1,154,989.92 : x - Step 2: Convert to fraction form
2,121,862.68/2,928,167.64 = 1,154,989.92/x - Step 3: Cross multiply
2,121,862.68x = 2,928,167.64 × 1,154,989.92 - Step 4: Simplify right side
2,121,862.68x = 3,382,004,108,270.19 - Step 5: Solve for x
x = 3,382,004,108,270.19/2,121,862.68 - Step 6: Final answer
x = 1,593,884.53
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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.