Finding the Fourth Proportional to 1,226,454.21, 1,839,689.69 and 468,091.17
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Solution
The fourth proportional to 1,226,454.21, 1,839,689.69 and 468,091.17 is: 702,139.95
Step by Step Solution
- Step 1: Write the proportion equation
1,226,454.21 : 1,839,689.69 = 468,091.17 : x - Step 2: Convert to fraction form
1,226,454.21/1,839,689.69 = 468,091.17/x - Step 3: Cross multiply
1,226,454.21x = 1,839,689.69 × 468,091.17 - Step 4: Simplify right side
1,226,454.21x = 861,142,497,088.58 - Step 5: Solve for x
x = 861,142,497,088.58/1,226,454.21 - Step 6: Final answer
x = 702,139.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.