Finding the Fourth Proportional to 623,791.62, 860,831.40 and 351,858.66
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Solution
The fourth proportional to 623,791.62, 860,831.40 and 351,858.66 is: 485,564.37
Step by Step Solution
- Step 1: Write the proportion equation
623,791.62 : 860,831.40 = 351,858.66 : x - Step 2: Convert to fraction form
623,791.62/860,831.40 = 351,858.66/x - Step 3: Cross multiply
623,791.62x = 860,831.40 × 351,858.66 - Step 4: Simplify right side
623,791.62x = 302,890,982,889.92 - Step 5: Solve for x
x = 302,890,982,889.92/623,791.62 - Step 6: Final answer
x = 485,564.37
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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.