Finding the Fourth Proportional to 450,540.09, 621,740.58 and 243,803.95
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Solution
The fourth proportional to 450,540.09, 621,740.58 and 243,803.95 is: 336,446.89
Step by Step Solution
- Step 1: Write the proportion equation
450,540.09 : 621,740.58 = 243,803.95 : x - Step 2: Convert to fraction form
450,540.09/621,740.58 = 243,803.95/x - Step 3: Cross multiply
450,540.09x = 621,740.58 × 243,803.95 - Step 4: Simplify right side
450,540.09x = 151,582,809,888.80 - Step 5: Solve for x
x = 151,582,809,888.80/450,540.09 - Step 6: Final answer
x = 336,446.89
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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.