Finding the Fourth Proportional to 658,831.96, 909,163.68 and 357,019.48
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Solution
The fourth proportional to 658,831.96, 909,163.68 and 357,019.48 is: 492,673.65
Step by Step Solution
- Step 1: Write the proportion equation
658,831.96 : 909,163.68 = 357,019.48 : x - Step 2: Convert to fraction form
658,831.96/909,163.68 = 357,019.48/x - Step 3: Cross multiply
658,831.96x = 909,163.68 × 357,019.48 - Step 4: Simplify right side
658,831.96x = 324,589,144,268.49 - Step 5: Solve for x
x = 324,589,144,268.49/658,831.96 - Step 6: Final answer
x = 492,673.65
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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.