Finding the Fourth Proportional to 5,115,038.56, 7,672,376.24 and 1,276,882.72
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Solution
The fourth proportional to 5,115,038.56, 7,672,376.24 and 1,276,882.72 is: 1,915,278.75
Step by Step Solution
- Step 1: Write the proportion equation
5,115,038.56 : 7,672,376.24 = 1,276,882.72 : x - Step 2: Convert to fraction form
5,115,038.56/7,672,376.24 = 1,276,882.72/x - Step 3: Cross multiply
5,115,038.56x = 7,672,376.24 × 1,276,882.72 - Step 4: Simplify right side
5,115,038.56x = 9,796,724,642,194.57 - Step 5: Solve for x
x = 9,796,724,642,194.57/5,115,038.56 - Step 6: Final answer
x = 1,915,278.75
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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.