Finding the Fourth Proportional to 2,101,982.50, 2,901,208.35 and 1,376,408.80
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Solution
The fourth proportional to 2,101,982.50, 2,901,208.35 and 1,376,408.80 is: 1,899,753.54
Step by Step Solution
- Step 1: Write the proportion equation
2,101,982.50 : 2,901,208.35 = 1,376,408.80 : x - Step 2: Convert to fraction form
2,101,982.50/2,901,208.35 = 1,376,408.80/x - Step 3: Cross multiply
2,101,982.50x = 2,901,208.35 × 1,376,408.80 - Step 4: Simplify right side
2,101,982.50x = 3,993,248,703,573.48 - Step 5: Solve for x
x = 3,993,248,703,573.48/2,101,982.50 - Step 6: Final answer
x = 1,899,753.54
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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.