Finding the Fourth Proportional to 860,170.68, 1,186,968.30 and 478,174.20
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Solution
The fourth proportional to 860,170.68, 1,186,968.30 and 478,174.20 is: 659,843.02
Step by Step Solution
- Step 1: Write the proportion equation
860,170.68 : 1,186,968.30 = 478,174.20 : x - Step 2: Convert to fraction form
860,170.68/1,186,968.30 = 478,174.20/x - Step 3: Cross multiply
860,170.68x = 1,186,968.30 × 478,174.20 - Step 4: Simplify right side
860,170.68x = 567,577,617,277.86 - Step 5: Solve for x
x = 567,577,617,277.86/860,170.68 - Step 6: Final answer
x = 659,843.02
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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.