Finding the Fourth Proportional to 1,052,385.84, 1,578,402.96 and 378,329.76
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Solution
The fourth proportional to 1,052,385.84, 1,578,402.96 and 378,329.76 is: 567,431.44
Step by Step Solution
- Step 1: Write the proportion equation
1,052,385.84 : 1,578,402.96 = 378,329.76 : x - Step 2: Convert to fraction form
1,052,385.84/1,578,402.96 = 378,329.76/x - Step 3: Cross multiply
1,052,385.84x = 1,578,402.96 × 378,329.76 - Step 4: Simplify right side
1,052,385.84x = 597,156,813,040.09 - Step 5: Solve for x
x = 597,156,813,040.09/1,052,385.84 - Step 6: Final answer
x = 567,431.44
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.