Finding the Fourth Proportional to 831,009.96, 1,247,190.48 and 471,408.84
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Solution
The fourth proportional to 831,009.96, 1,247,190.48 and 471,408.84 is: 707,496.48
Step by Step Solution
- Step 1: Write the proportion equation
831,009.96 : 1,247,190.48 = 471,408.84 : x - Step 2: Convert to fraction form
831,009.96/1,247,190.48 = 471,408.84/x - Step 3: Cross multiply
831,009.96x = 1,247,190.48 × 471,408.84 - Step 4: Simplify right side
831,009.96x = 587,936,617,435.84 - Step 5: Solve for x
x = 587,936,617,435.84/831,009.96 - Step 6: Final answer
x = 707,496.48
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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.