Finding the Fourth Proportional to 860,761.98, 1,187,995.68 and 498,123.36
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Solution
The fourth proportional to 860,761.98, 1,187,995.68 and 498,123.36 is: 687,493.66
Step by Step Solution
- Step 1: Write the proportion equation
860,761.98 : 1,187,995.68 = 498,123.36 : x - Step 2: Convert to fraction form
860,761.98/1,187,995.68 = 498,123.36/x - Step 3: Cross multiply
860,761.98x = 1,187,995.68 × 498,123.36 - Step 4: Simplify right side
860,761.98x = 591,768,399,787.09 - Step 5: Solve for x
x = 591,768,399,787.09/860,761.98 - Step 6: Final answer
x = 687,493.66
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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.