Finding the Fourth Proportional to 2,132,421.08, 2,942,736.82 and 1,214,649.87
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Solution
The fourth proportional to 2,132,421.08, 2,942,736.82 and 1,214,649.87 is: 1,676,214.39
Step by Step Solution
- Step 1: Write the proportion equation
2,132,421.08 : 2,942,736.82 = 1,214,649.87 : x - Step 2: Convert to fraction form
2,132,421.08/2,942,736.82 = 1,214,649.87/x - Step 3: Cross multiply
2,132,421.08x = 2,942,736.82 × 1,214,649.87 - Step 4: Simplify right side
2,132,421.08x = 3,574,394,881,143.53 - Step 5: Solve for x
x = 3,574,394,881,143.53/2,132,421.08 - Step 6: Final answer
x = 1,676,214.39
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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.