Finding the Fourth Proportional to 860,326.37, 1,187,243.20 and 478,349.81
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Solution
The fourth proportional to 860,326.37, 1,187,243.20 and 478,349.81 is: 660,118.74
Step by Step Solution
- Step 1: Write the proportion equation
860,326.37 : 1,187,243.20 = 478,349.81 : x - Step 2: Convert to fraction form
860,326.37/1,187,243.20 = 478,349.81/x - Step 3: Cross multiply
860,326.37x = 1,187,243.20 × 478,349.81 - Step 4: Simplify right side
860,326.37x = 567,917,560,916.03 - Step 5: Solve for x
x = 567,917,560,916.03/860,326.37 - Step 6: Final answer
x = 660,118.74
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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.