Finding the Fourth Proportional to 450,563.58, 621,776.09 and 243,831.56
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Solution
The fourth proportional to 450,563.58, 621,776.09 and 243,831.56 is: 336,486.65
Step by Step Solution
- Step 1: Write the proportion equation
450,563.58 : 621,776.09 = 243,831.56 : x - Step 2: Convert to fraction form
450,563.58/621,776.09 = 243,831.56/x - Step 3: Cross multiply
450,563.58x = 621,776.09 × 243,831.56 - Step 4: Simplify right side
450,563.58x = 151,608,631,496.10 - Step 5: Solve for x
x = 151,608,631,496.10/450,563.58 - Step 6: Final answer
x = 336,486.65
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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.