Finding the Fourth Proportional to 407,831.40, 611,747.10 and 366,497.10
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Solution
The fourth proportional to 407,831.40, 611,747.10 and 366,497.10 is: 549,745.65
Step by Step Solution
- Step 1: Write the proportion equation
407,831.40 : 611,747.10 = 366,497.10 : x - Step 2: Convert to fraction form
407,831.40/611,747.10 = 366,497.10/x - Step 3: Cross multiply
407,831.40x = 611,747.10 × 366,497.10 - Step 4: Simplify right side
407,831.40x = 224,203,538,083.41 - Step 5: Solve for x
x = 224,203,538,083.41/407,831.40 - Step 6: Final answer
x = 549,745.65
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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.