Finding the Fourth Proportional to 831,348.98, 1,247,352.87 and 432,241.46
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Solution
The fourth proportional to 831,348.98, 1,247,352.87 and 432,241.46 is: 648,533.45
Step by Step Solution
- Step 1: Write the proportion equation
831,348.98 : 1,247,352.87 = 432,241.46 : x - Step 2: Convert to fraction form
831,348.98/1,247,352.87 = 432,241.46/x - Step 3: Cross multiply
831,348.98x = 1,247,352.87 × 432,241.46 - Step 4: Simplify right side
831,348.98x = 539,157,625,663.99 - Step 5: Solve for x
x = 539,157,625,663.99/831,348.98 - Step 6: Final answer
x = 648,533.45
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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.