Finding the Fourth Proportional to 678,939.84, 936,952.62 and 373,035.31
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Solution
The fourth proportional to 678,939.84, 936,952.62 and 373,035.31 is: 514,797.32
Step by Step Solution
- Step 1: Write the proportion equation
678,939.84 : 936,952.62 = 373,035.31 : x - Step 2: Convert to fraction form
678,939.84/936,952.62 = 373,035.31/x - Step 3: Cross multiply
678,939.84x = 936,952.62 × 373,035.31 - Step 4: Simplify right side
678,939.84x = 349,516,411,057.01 - Step 5: Solve for x
x = 349,516,411,057.01/678,939.84 - Step 6: Final answer
x = 514,797.32
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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.