Finding the Fourth Proportional to 831,157.05, 1,243,625.18 and 551,221.05
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Solution
The fourth proportional to 831,157.05, 1,243,625.18 and 551,221.05 is: 824,768.77
Step by Step Solution
- Step 1: Write the proportion equation
831,157.05 : 1,243,625.18 = 551,221.05 : x - Step 2: Convert to fraction form
831,157.05/1,243,625.18 = 551,221.05/x - Step 3: Cross multiply
831,157.05x = 1,243,625.18 × 551,221.05 - Step 4: Simplify right side
831,157.05x = 685,512,374,769.93 - Step 5: Solve for x
x = 685,512,374,769.93/831,157.05 - Step 6: Final answer
x = 824,768.77
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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.