Finding the Fourth Proportional to 2,121,343.87, 2,925,419.36 and 1,425,197.51
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Solution
The fourth proportional to 2,121,343.87, 2,925,419.36 and 1,425,197.51 is: 1,965,405.25
Step by Step Solution
- Step 1: Write the proportion equation
2,121,343.87 : 2,925,419.36 = 1,425,197.51 : x - Step 2: Convert to fraction form
2,121,343.87/2,925,419.36 = 1,425,197.51/x - Step 3: Cross multiply
2,121,343.87x = 2,925,419.36 × 1,425,197.51 - Step 4: Simplify right side
2,121,343.87x = 4,169,300,380,592.39 - Step 5: Solve for x
x = 4,169,300,380,592.39/2,121,343.87 - Step 6: Final answer
x = 1,965,405.25
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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.