Finding the Fourth Proportional to 3,187,821.84, 4,399,155.40 and 1,737,512.84
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Solution
The fourth proportional to 3,187,821.84, 4,399,155.40 and 1,737,512.84 is: 2,397,746.60
Step by Step Solution
- Step 1: Write the proportion equation
3,187,821.84 : 4,399,155.40 = 1,737,512.84 : x - Step 2: Convert to fraction form
3,187,821.84/4,399,155.40 = 1,737,512.84/x - Step 3: Cross multiply
3,187,821.84x = 4,399,155.40 × 1,737,512.84 - Step 4: Simplify right side
3,187,821.84x = 7,643,588,992,655.34 - Step 5: Solve for x
x = 7,643,588,992,655.34/3,187,821.84 - Step 6: Final answer
x = 2,397,746.60
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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.