Finding the Fourth Proportional to 947,831.82, 1,421,747.74 and 316,745.63
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Solution
The fourth proportional to 947,831.82, 1,421,747.74 and 316,745.63 is: 475,118.45
Step by Step Solution
- Step 1: Write the proportion equation
947,831.82 : 1,421,747.74 = 316,745.63 : x - Step 2: Convert to fraction form
947,831.82/1,421,747.74 = 316,745.63/x - Step 3: Cross multiply
947,831.82x = 1,421,747.74 × 316,745.63 - Step 4: Simplify right side
947,831.82x = 450,332,383,607.38 - Step 5: Solve for x
x = 450,332,383,607.38/947,831.82 - Step 6: Final answer
x = 475,118.45
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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.