Finding the Fourth Proportional to 860,218.73, 1,187,151.09 and 478,270.12
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Solution
The fourth proportional to 860,218.73, 1,187,151.09 and 478,270.12 is: 660,040.14
Step by Step Solution
- Step 1: Write the proportion equation
860,218.73 : 1,187,151.09 = 478,270.12 : x - Step 2: Convert to fraction form
860,218.73/1,187,151.09 = 478,270.12/x - Step 3: Cross multiply
860,218.73x = 1,187,151.09 × 478,270.12 - Step 4: Simplify right side
860,218.73x = 567,778,891,736.95 - Step 5: Solve for x
x = 567,778,891,736.95/860,218.73 - Step 6: Final answer
x = 660,040.14
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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.