Finding the Fourth Proportional to 3,895,041.78, 5,376,657.69 and 3,486,422.70
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Solution
The fourth proportional to 3,895,041.78, 5,376,657.69 and 3,486,422.70 is: 4,812,605.99
Step by Step Solution
- Step 1: Write the proportion equation
3,895,041.78 : 5,376,657.69 = 3,486,422.70 : x - Step 2: Convert to fraction form
3,895,041.78/5,376,657.69 = 3,486,422.70/x - Step 3: Cross multiply
3,895,041.78x = 5,376,657.69 × 3,486,422.70 - Step 4: Simplify right side
3,895,041.78x = 18,745,301,420,545.57 - Step 5: Solve for x
x = 18,745,301,420,545.57/3,895,041.78 - Step 6: Final answer
x = 4,812,605.99
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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.