Finding the Fourth Proportional to 678,617.36, 936,534.16 and 376,813.52
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Solution
The fourth proportional to 678,617.36, 936,534.16 and 376,813.52 is: 520,026.09
Step by Step Solution
- Step 1: Write the proportion equation
678,617.36 : 936,534.16 = 376,813.52 : x - Step 2: Convert to fraction form
678,617.36/936,534.16 = 376,813.52/x - Step 3: Cross multiply
678,617.36x = 936,534.16 × 376,813.52 - Step 4: Simplify right side
678,617.36x = 352,898,733,429.84 - Step 5: Solve for x
x = 352,898,733,429.84/678,617.36 - Step 6: Final answer
x = 520,026.09
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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.