Finding the Fourth Proportional to 1,415,893.96, 1,953,932.82 and 779,989.96
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Solution
The fourth proportional to 1,415,893.96, 1,953,932.82 and 779,989.96 is: 1,076,385.68
Step by Step Solution
- Step 1: Write the proportion equation
1,415,893.96 : 1,953,932.82 = 779,989.96 : x - Step 2: Convert to fraction form
1,415,893.96/1,953,932.82 = 779,989.96/x - Step 3: Cross multiply
1,415,893.96x = 1,953,932.82 × 779,989.96 - Step 4: Simplify right side
1,415,893.96x = 1,524,047,982,114.49 - Step 5: Solve for x
x = 1,524,047,982,114.49/1,415,893.96 - Step 6: Final answer
x = 1,076,385.68
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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.