Finding the Fourth Proportional to 2,131,886.04, 2,942,041.20 and 1,165,057.08
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Solution
The fourth proportional to 2,131,886.04, 2,942,041.20 and 1,165,057.08 is: 1,607,799.79
Step by Step Solution
- Step 1: Write the proportion equation
2,131,886.04 : 2,942,041.20 = 1,165,057.08 : x - Step 2: Convert to fraction form
2,131,886.04/2,942,041.20 = 1,165,057.08/x - Step 3: Cross multiply
2,131,886.04x = 2,942,041.20 × 1,165,057.08 - Step 4: Simplify right side
2,131,886.04x = 3,427,645,929,711.70 - Step 5: Solve for x
x = 3,427,645,929,711.70/2,131,886.04 - Step 6: Final answer
x = 1,607,799.79
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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.