Finding the Fourth Proportional to 2,115,440.84, 2,921,711.96 and 1,425,923.48
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Solution
The fourth proportional to 2,115,440.84, 2,921,711.96 and 1,425,923.48 is: 1,969,394.56
Step by Step Solution
- Step 1: Write the proportion equation
2,115,440.84 : 2,921,711.96 = 1,425,923.48 : x - Step 2: Convert to fraction form
2,115,440.84/2,921,711.96 = 1,425,923.48/x - Step 3: Cross multiply
2,115,440.84x = 2,921,711.96 × 1,425,923.48 - Step 4: Simplify right side
2,115,440.84x = 4,166,137,685,560.82 - Step 5: Solve for x
x = 4,166,137,685,560.82/2,115,440.84 - Step 6: Final answer
x = 1,969,394.56
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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.