Finding the Fourth Proportional to 1,412,719.29, 1,949,576.99 and 768,143.84
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Solution
The fourth proportional to 1,412,719.29, 1,949,576.99 and 768,143.84 is: 1,060,051.74
Step by Step Solution
- Step 1: Write the proportion equation
1,412,719.29 : 1,949,576.99 = 768,143.84 : x - Step 2: Convert to fraction form
1,412,719.29/1,949,576.99 = 768,143.84/x - Step 3: Cross multiply
1,412,719.29x = 1,949,576.99 × 768,143.84 - Step 4: Simplify right side
1,412,719.29x = 1,497,555,541,885.64 - Step 5: Solve for x
x = 1,497,555,541,885.64/1,412,719.29 - Step 6: Final answer
x = 1,060,051.74
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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.