Finding the Fourth Proportional to 909.99, 1,255.75 and 536.99
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Solution
The fourth proportional to 909.99, 1,255.75 and 536.99 is: 741.02
Step by Step Solution
- Step 1: Write the proportion equation
909.99 : 1,255.75 = 536.99 : x - Step 2: Convert to fraction form
909.99/1,255.75 = 536.99/x - Step 3: Cross multiply
909.99x = 1,255.75 × 536.99 - Step 4: Simplify right side
909.99x = 674,317.57 - Step 5: Solve for x
x = 674,317.57/909.99 - Step 6: Final answer
x = 741.02
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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.