Finding the Fourth Proportional to 1,625,434.49, 2,438,170.17 and 427,477.91
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Solution
The fourth proportional to 1,625,434.49, 2,438,170.17 and 427,477.91 is: 641,221.70
Step by Step Solution
- Step 1: Write the proportion equation
1,625,434.49 : 2,438,170.17 = 427,477.91 : x - Step 2: Convert to fraction form
1,625,434.49/2,438,170.17 = 427,477.91/x - Step 3: Cross multiply
1,625,434.49x = 2,438,170.17 × 427,477.91 - Step 4: Simplify right side
1,625,434.49x = 1,042,263,874,702.05 - Step 5: Solve for x
x = 1,042,263,874,702.05/1,625,434.49 - Step 6: Final answer
x = 641,221.70
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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.