Finding the Fourth Proportional to 2,145,930.11, 2,960,651.14 and 1,329,836.03
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Solution
The fourth proportional to 2,145,930.11, 2,960,651.14 and 1,329,836.03 is: 1,834,719.84
Step by Step Solution
- Step 1: Write the proportion equation
2,145,930.11 : 2,960,651.14 = 1,329,836.03 : x - Step 2: Convert to fraction form
2,145,930.11/2,960,651.14 = 1,329,836.03/x - Step 3: Cross multiply
2,145,930.11x = 2,960,651.14 × 1,329,836.03 - Step 4: Simplify right side
2,145,930.11x = 3,937,180,551,207.17 - Step 5: Solve for x
x = 3,937,180,551,207.17/2,145,930.11 - Step 6: Final answer
x = 1,834,719.84
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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.