Finding the Fourth Proportional to 2,140,212.97, 2,953,329.99 and 1,222,315.41
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Solution
The fourth proportional to 2,140,212.97, 2,953,329.99 and 1,222,315.41 is: 1,686,701.65
Step by Step Solution
- Step 1: Write the proportion equation
2,140,212.97 : 2,953,329.99 = 1,222,315.41 : x - Step 2: Convert to fraction form
2,140,212.97/2,953,329.99 = 1,222,315.41/x - Step 3: Cross multiply
2,140,212.97x = 2,953,329.99 × 1,222,315.41 - Step 4: Simplify right side
2,140,212.97x = 3,609,900,757,592.15 - Step 5: Solve for x
x = 3,609,900,757,592.15/2,140,212.97 - Step 6: Final answer
x = 1,686,701.65
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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.