Finding the Fourth Proportional to 394,798.12, 592,430.46 and 145,655.08
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Solution
The fourth proportional to 394,798.12, 592,430.46 and 145,655.08 is: 218,568.68
Step by Step Solution
- Step 1: Write the proportion equation
394,798.12 : 592,430.46 = 145,655.08 : x - Step 2: Convert to fraction form
394,798.12/592,430.46 = 145,655.08/x - Step 3: Cross multiply
394,798.12x = 592,430.46 × 145,655.08 - Step 4: Simplify right side
394,798.12x = 86,290,504,018.45 - Step 5: Solve for x
x = 86,290,504,018.45/394,798.12 - Step 6: Final answer
x = 218,568.68
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.