Finding the Fourth Proportional to 660,791.26, 911,892.74 and 358,985.26
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Solution
The fourth proportional to 660,791.26, 911,892.74 and 358,985.26 is: 495,400.09
Step by Step Solution
- Step 1: Write the proportion equation
660,791.26 : 911,892.74 = 358,985.26 : x - Step 2: Convert to fraction form
660,791.26/911,892.74 = 358,985.26/x - Step 3: Cross multiply
660,791.26x = 911,892.74 × 358,985.26 - Step 4: Simplify right side
660,791.26x = 327,356,052,361.01 - Step 5: Solve for x
x = 327,356,052,361.01/660,791.26 - Step 6: Final answer
x = 495,400.09
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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.