Finding the Fourth Proportional to 747,408.38, 1,121,112.56 and 242,391.80
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Solution
The fourth proportional to 747,408.38, 1,121,112.56 and 242,391.80 is: 363,587.70
Step by Step Solution
- Step 1: Write the proportion equation
747,408.38 : 1,121,112.56 = 242,391.80 : x - Step 2: Convert to fraction form
747,408.38/1,121,112.56 = 242,391.80/x - Step 3: Cross multiply
747,408.38x = 1,121,112.56 × 242,391.80 - Step 4: Simplify right side
747,408.38x = 271,748,494,829.77 - Step 5: Solve for x
x = 271,748,494,829.77/747,408.38 - Step 6: Final answer
x = 363,587.70
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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.