Finding the Fourth Proportional to 3,955,340, 5,929,491.36 and 1,430,433.92
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Solution
The fourth proportional to 3,955,340, 5,929,491.36 and 1,430,433.92 is: 2,144,378.38
Step by Step Solution
- Step 1: Write the proportion equation
3,955,340 : 5,929,491.36 = 1,430,433.92 : x - Step 2: Convert to fraction form
3,955,340/5,929,491.36 = 1,430,433.92/x - Step 3: Cross multiply
3,955,340x = 5,929,491.36 × 1,430,433.92 - Step 4: Simplify right side
3,955,340x = 8,481,745,569,690.93 - Step 5: Solve for x
x = 8,481,745,569,690.93/3,955,340 - Step 6: Final answer
x = 2,144,378.38
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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.