Finding the Fourth Proportional to 2,146,636.26, 2,962,392.63 and 1,228,861.71
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Solution
The fourth proportional to 2,146,636.26, 2,962,392.63 and 1,228,861.71 is: 1,695,848.96
Step by Step Solution
- Step 1: Write the proportion equation
2,146,636.26 : 2,962,392.63 = 1,228,861.71 : x - Step 2: Convert to fraction form
2,146,636.26/2,962,392.63 = 1,228,861.71/x - Step 3: Cross multiply
2,146,636.26x = 2,962,392.63 × 1,228,861.71 - Step 4: Simplify right side
2,146,636.26x = 3,640,370,872,993.20 - Step 5: Solve for x
x = 3,640,370,872,993.20/2,146,636.26 - Step 6: Final answer
x = 1,695,848.96
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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.