Finding the Fourth Proportional to 623,764.18, 860,722.26 and 351,836.55
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Solution
The fourth proportional to 623,764.18, 860,722.26 and 351,836.55 is: 485,493.65
Step by Step Solution
- Step 1: Write the proportion equation
623,764.18 : 860,722.26 = 351,836.55 : x - Step 2: Convert to fraction form
623,764.18/860,722.26 = 351,836.55/x - Step 3: Cross multiply
623,764.18x = 860,722.26 × 351,836.55 - Step 4: Simplify right side
623,764.18x = 302,833,550,466.60 - Step 5: Solve for x
x = 302,833,550,466.60/623,764.18 - Step 6: Final answer
x = 485,493.65
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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.