Finding the Fourth Proportional to 939,317.20, 1,407,821.09 and 433,175.53
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Solution
The fourth proportional to 939,317.20, 1,407,821.09 and 433,175.53 is: 649,230.79
Step by Step Solution
- Step 1: Write the proportion equation
939,317.20 : 1,407,821.09 = 433,175.53 : x - Step 2: Convert to fraction form
939,317.20/1,407,821.09 = 433,175.53/x - Step 3: Cross multiply
939,317.20x = 1,407,821.09 × 433,175.53 - Step 4: Simplify right side
939,317.20x = 609,833,646,805.93 - Step 5: Solve for x
x = 609,833,646,805.93/939,317.20 - Step 6: Final answer
x = 649,230.79
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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.