Finding the Fourth Proportional to 860,367.68, 1,187,401.92 and 492,879.68
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Solution
The fourth proportional to 860,367.68, 1,187,401.92 and 492,879.68 is: 680,228.11
Step by Step Solution
- Step 1: Write the proportion equation
860,367.68 : 1,187,401.92 = 492,879.68 : x - Step 2: Convert to fraction form
860,367.68/1,187,401.92 = 492,879.68/x - Step 3: Cross multiply
860,367.68x = 1,187,401.92 × 492,879.68 - Step 4: Simplify right side
860,367.68x = 585,246,278,360.99 - Step 5: Solve for x
x = 585,246,278,360.99/860,367.68 - Step 6: Final answer
x = 680,228.11
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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.