Finding the Fourth Proportional to 2,072,774.72, 2,860,633.12 and 1,213,282.88
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Solution
The fourth proportional to 2,072,774.72, 2,860,633.12 and 1,213,282.88 is: 1,674,449.79
Step by Step Solution
- Step 1: Write the proportion equation
2,072,774.72 : 2,860,633.12 = 1,213,282.88 : x - Step 2: Convert to fraction form
2,072,774.72/2,860,633.12 = 1,213,282.88/x - Step 3: Cross multiply
2,072,774.72x = 2,860,633.12 × 1,213,282.88 - Step 4: Simplify right side
2,072,774.72x = 3,470,757,190,456.99 - Step 5: Solve for x
x = 3,470,757,190,456.99/2,072,774.72 - Step 6: Final answer
x = 1,674,449.79
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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.