Finding the Fourth Proportional to 860,937.85, 1,291,407.99 and 411,553.09
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Solution
The fourth proportional to 860,937.85, 1,291,407.99 and 411,553.09 is: 617,330.22
Step by Step Solution
- Step 1: Write the proportion equation
860,937.85 : 1,291,407.99 = 411,553.09 : x - Step 2: Convert to fraction form
860,937.85/1,291,407.99 = 411,553.09/x - Step 3: Cross multiply
860,937.85x = 1,291,407.99 × 411,553.09 - Step 4: Simplify right side
860,937.85x = 531,482,948,735.19 - Step 5: Solve for x
x = 531,482,948,735.19/860,937.85 - Step 6: Final answer
x = 617,330.22
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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.