Finding the Fourth Proportional to 865,172.62, 1,193,764.82 and 483,140.62
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Solution
The fourth proportional to 865,172.62, 1,193,764.82 and 483,140.62 is: 666,637.23
Step by Step Solution
- Step 1: Write the proportion equation
865,172.62 : 1,193,764.82 = 483,140.62 : x - Step 2: Convert to fraction form
865,172.62/1,193,764.82 = 483,140.62/x - Step 3: Cross multiply
865,172.62x = 1,193,764.82 × 483,140.62 - Step 4: Simplify right side
865,172.62x = 576,756,275,268.99 - Step 5: Solve for x
x = 576,756,275,268.99/865,172.62 - Step 6: Final answer
x = 666,637.23
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.