Finding the Fourth Proportional to 623,111.68, 936,618.74 and 411,241.26
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Solution
The fourth proportional to 623,111.68, 936,618.74 and 411,241.26 is: 618,149.66
Step by Step Solution
- Step 1: Write the proportion equation
623,111.68 : 936,618.74 = 411,241.26 : x - Step 2: Convert to fraction form
623,111.68/936,618.74 = 411,241.26/x - Step 3: Cross multiply
623,111.68x = 936,618.74 × 411,241.26 - Step 4: Simplify right side
623,111.68x = 385,176,270,777.21 - Step 5: Solve for x
x = 385,176,270,777.21/623,111.68 - Step 6: Final answer
x = 618,149.66
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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.