Finding the Fourth Proportional to 623,438.67, 860,328.09 and 351,504.15
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Solution
The fourth proportional to 623,438.67, 860,328.09 and 351,504.15 is: 485,065.99
Step by Step Solution
- Step 1: Write the proportion equation
623,438.67 : 860,328.09 = 351,504.15 : x - Step 2: Convert to fraction form
623,438.67/860,328.09 = 351,504.15/x - Step 3: Cross multiply
623,438.67x = 860,328.09 × 351,504.15 - Step 4: Simplify right side
623,438.67x = 302,408,893,996.57 - Step 5: Solve for x
x = 302,408,893,996.57/623,438.67 - Step 6: Final answer
x = 485,065.99
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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.