Finding the Fourth Proportional to 623,109.68, 936,615.72 and 411,239.26
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Solution
The fourth proportional to 623,109.68, 936,615.72 and 411,239.26 is: 618,146.65
Step by Step Solution
- Step 1: Write the proportion equation
623,109.68 : 936,615.72 = 411,239.26 : x - Step 2: Convert to fraction form
623,109.68/936,615.72 = 411,239.26/x - Step 3: Cross multiply
623,109.68x = 936,615.72 × 411,239.26 - Step 4: Simplify right side
623,109.68x = 385,173,158,310.08 - Step 5: Solve for x
x = 385,173,158,310.08/623,109.68 - Step 6: Final answer
x = 618,146.65
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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.