Finding the Fourth Proportional to 860,169.18, 1,186,966.23 and 478,172.70
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Solution
The fourth proportional to 860,169.18, 1,186,966.23 and 478,172.70 is: 659,840.95
Step by Step Solution
- Step 1: Write the proportion equation
860,169.18 : 1,186,966.23 = 478,172.70 : x - Step 2: Convert to fraction form
860,169.18/1,186,966.23 = 478,172.70/x - Step 3: Cross multiply
860,169.18x = 1,186,966.23 × 478,172.70 - Step 4: Simplify right side
860,169.18x = 567,574,847,007.92 - Step 5: Solve for x
x = 567,574,847,007.92/860,169.18 - Step 6: Final answer
x = 659,840.95
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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.