Finding the Fourth Proportional to 750,811.36, 1,036,136.38 and 428,514.96
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Solution
The fourth proportional to 750,811.36, 1,036,136.38 and 428,514.96 is: 591,360.18
Step by Step Solution
- Step 1: Write the proportion equation
750,811.36 : 1,036,136.38 = 428,514.96 : x - Step 2: Convert to fraction form
750,811.36/1,036,136.38 = 428,514.96/x - Step 3: Cross multiply
750,811.36x = 1,036,136.38 × 428,514.96 - Step 4: Simplify right side
750,811.36x = 443,999,939,430.25 - Step 5: Solve for x
x = 443,999,939,430.25/750,811.36 - Step 6: Final answer
x = 591,360.18
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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.