Finding the Fourth Proportional to 3,895,034.28, 5,376,647.40 and 3,486,415.20
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Solution
The fourth proportional to 3,895,034.28, 5,376,647.40 and 3,486,415.20 is: 4,812,595.70
Step by Step Solution
- Step 1: Write the proportion equation
3,895,034.28 : 5,376,647.40 = 3,486,415.20 : x - Step 2: Convert to fraction form
3,895,034.28/5,376,647.40 = 3,486,415.20/x - Step 3: Cross multiply
3,895,034.28x = 5,376,647.40 × 3,486,415.20 - Step 4: Simplify right side
3,895,034.28x = 18,745,225,220,400.48 - Step 5: Solve for x
x = 18,745,225,220,400.48/3,895,034.28 - Step 6: Final answer
x = 4,812,595.70
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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.