Finding the Fourth Proportional to 1,860,755.70, 2,791,133.55 and 1,388,363.70
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Solution
The fourth proportional to 1,860,755.70, 2,791,133.55 and 1,388,363.70 is: 2,082,545.55
Step by Step Solution
- Step 1: Write the proportion equation
1,860,755.70 : 2,791,133.55 = 1,388,363.70 : x - Step 2: Convert to fraction form
1,860,755.70/2,791,133.55 = 1,388,363.70/x - Step 3: Cross multiply
1,860,755.70x = 2,791,133.55 × 1,388,363.70 - Step 4: Simplify right side
1,860,755.70x = 3,875,108,502,672.14 - Step 5: Solve for x
x = 3,875,108,502,672.14/1,860,755.70 - Step 6: Final answer
x = 2,082,545.55
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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.