Finding the Fourth Proportional to 2,138,181.96, 2,950,603.56 and 1,278,234.12
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Solution
The fourth proportional to 2,138,181.96, 2,950,603.56 and 1,278,234.12 is: 1,763,910.75
Step by Step Solution
- Step 1: Write the proportion equation
2,138,181.96 : 2,950,603.56 = 1,278,234.12 : x - Step 2: Convert to fraction form
2,138,181.96/2,950,603.56 = 1,278,234.12/x - Step 3: Cross multiply
2,138,181.96x = 2,950,603.56 × 1,278,234.12 - Step 4: Simplify right side
2,138,181.96x = 3,771,562,144,985.47 - Step 5: Solve for x
x = 3,771,562,144,985.47/2,138,181.96 - Step 6: Final answer
x = 1,763,910.75
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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.