Finding the Fourth Proportional to 2,379,076.30, 3,283,037.49 and 1,291,324.87
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Solution
The fourth proportional to 2,379,076.30, 3,283,037.49 and 1,291,324.87 is: 1,781,980.66
Step by Step Solution
- Step 1: Write the proportion equation
2,379,076.30 : 3,283,037.49 = 1,291,324.87 : x - Step 2: Convert to fraction form
2,379,076.30/3,283,037.49 = 1,291,324.87/x - Step 3: Cross multiply
2,379,076.30x = 3,283,037.49 × 1,291,324.87 - Step 4: Simplify right side
2,379,076.30x = 4,239,467,959,979.38 - Step 5: Solve for x
x = 4,239,467,959,979.38/2,379,076.30 - Step 6: Final answer
x = 1,781,980.66
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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.