Finding the Fourth Proportional to 748,380.88, 1,121,787.24 and 348,692.05
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Solution
The fourth proportional to 748,380.88, 1,121,787.24 and 348,692.05 is: 522,672.75
Step by Step Solution
- Step 1: Write the proportion equation
748,380.88 : 1,121,787.24 = 348,692.05 : x - Step 2: Convert to fraction form
748,380.88/1,121,787.24 = 348,692.05/x - Step 3: Cross multiply
748,380.88x = 1,121,787.24 × 348,692.05 - Step 4: Simplify right side
748,380.88x = 391,158,292,379.44 - Step 5: Solve for x
x = 391,158,292,379.44/748,380.88 - Step 6: Final answer
x = 522,672.75
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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.