Finding the Fourth Proportional to 450,418.74, 621,585.73 and 246,487.74
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Solution
The fourth proportional to 450,418.74, 621,585.73 and 246,487.74 is: 340,157.39
Step by Step Solution
- Step 1: Write the proportion equation
450,418.74 : 621,585.73 = 246,487.74 : x - Step 2: Convert to fraction form
450,418.74/621,585.73 = 246,487.74/x - Step 3: Cross multiply
450,418.74x = 621,585.73 × 246,487.74 - Step 4: Simplify right side
450,418.74x = 153,213,261,803.95 - Step 5: Solve for x
x = 153,213,261,803.95/450,418.74 - Step 6: Final answer
x = 340,157.39
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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.