Finding the Fourth Proportional to 1,625,214.70, 2,438,210.94 and 678,059.02
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Solution
The fourth proportional to 1,625,214.70, 2,438,210.94 and 678,059.02 is: 1,017,250.78
Step by Step Solution
- Step 1: Write the proportion equation
1,625,214.70 : 2,438,210.94 = 678,059.02 : x - Step 2: Convert to fraction form
1,625,214.70/2,438,210.94 = 678,059.02/x - Step 3: Cross multiply
1,625,214.70x = 2,438,210.94 × 678,059.02 - Step 4: Simplify right side
1,625,214.70x = 1,653,250,920,529.68 - Step 5: Solve for x
x = 1,653,250,920,529.68/1,625,214.70 - Step 6: Final answer
x = 1,017,250.78
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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.