Finding the Fourth Proportional to 3,703,605.40, 5,555,408.10 and 3,679,985.80
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Solution
The fourth proportional to 3,703,605.40, 5,555,408.10 and 3,679,985.80 is: 5,519,978.70
Step by Step Solution
- Step 1: Write the proportion equation
3,703,605.40 : 5,555,408.10 = 3,679,985.80 : x - Step 2: Convert to fraction form
3,703,605.40/5,555,408.10 = 3,679,985.80/x - Step 3: Cross multiply
3,703,605.40x = 5,555,408.10 × 3,679,985.80 - Step 4: Simplify right side
3,703,605.40x = 20,443,822,921,204.98 - Step 5: Solve for x
x = 20,443,822,921,204.98/3,703,605.40 - Step 6: Final answer
x = 5,519,978.70
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1.5x scale
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.