Finding the Fourth Proportional to 416,407.36, 574,642.06 and 225,420.60
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Solution
The fourth proportional to 416,407.36, 574,642.06 and 225,420.60 is: 311,080.38
Step by Step Solution
- Step 1: Write the proportion equation
416,407.36 : 574,642.06 = 225,420.60 : x - Step 2: Convert to fraction form
416,407.36/574,642.06 = 225,420.60/x - Step 3: Cross multiply
416,407.36x = 574,642.06 × 225,420.60 - Step 4: Simplify right side
416,407.36x = 129,536,157,950.44 - Step 5: Solve for x
x = 129,536,157,950.44/416,407.36 - Step 6: Final answer
x = 311,080.38
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1.5x scale
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.