Finding the Fourth Proportional to 2,146,489.92, 2,962,555.11 and 1,228,719.06
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Solution
The fourth proportional to 2,146,489.92, 2,962,555.11 and 1,228,719.06 is: 1,695,860.71
Step by Step Solution
- Step 1: Write the proportion equation
2,146,489.92 : 2,962,555.11 = 1,228,719.06 : x - Step 2: Convert to fraction form
2,146,489.92/2,962,555.11 = 1,228,719.06/x - Step 3: Cross multiply
2,146,489.92x = 2,962,555.11 × 1,228,719.06 - Step 4: Simplify right side
2,146,489.92x = 3,640,147,929,957.40 - Step 5: Solve for x
x = 3,640,147,929,957.40/2,146,489.92 - Step 6: Final answer
x = 1,695,860.71
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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.