Finding the Fourth Proportional to 831,136.57, 1,248,476.90 and 782,543.49
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Solution
The fourth proportional to 831,136.57, 1,248,476.90 and 782,543.49 is: 1,175,483.68
Step by Step Solution
- Step 1: Write the proportion equation
831,136.57 : 1,248,476.90 = 782,543.49 : x - Step 2: Convert to fraction form
831,136.57/1,248,476.90 = 782,543.49/x - Step 3: Cross multiply
831,136.57x = 1,248,476.90 × 782,543.49 - Step 4: Simplify right side
831,136.57x = 976,987,472,466.74 - Step 5: Solve for x
x = 976,987,472,466.74/831,136.57 - Step 6: Final answer
x = 1,175,483.68
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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.