Finding the Fourth Proportional to 860,269.24, 1,187,137.74 and 478,268.20
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Solution
The fourth proportional to 860,269.24, 1,187,137.74 and 478,268.20 is: 659,991.32
Step by Step Solution
- Step 1: Write the proportion equation
860,269.24 : 1,187,137.74 = 478,268.20 : x - Step 2: Convert to fraction form
860,269.24/1,187,137.74 = 478,268.20/x - Step 3: Cross multiply
860,269.24x = 1,187,137.74 × 478,268.20 - Step 4: Simplify right side
860,269.24x = 567,770,230,061.87 - Step 5: Solve for x
x = 567,770,230,061.87/860,269.24 - Step 6: Final answer
x = 659,991.32
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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.