Finding the Fourth Proportional to 831,148.30, 1,243,611.99 and 551,212.30
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Solution
The fourth proportional to 831,148.30, 1,243,611.99 and 551,212.30 is: 824,755.61
Step by Step Solution
- Step 1: Write the proportion equation
831,148.30 : 1,243,611.99 = 551,212.30 : x - Step 2: Convert to fraction form
831,148.30/1,243,611.99 = 551,212.30/x - Step 3: Cross multiply
831,148.30x = 1,243,611.99 × 551,212.30 - Step 4: Simplify right side
831,148.30x = 685,494,225,315.48 - Step 5: Solve for x
x = 685,494,225,315.48/831,148.30 - Step 6: Final answer
x = 824,755.61
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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.