Finding the Fourth Proportional to 678,614.36, 936,530.02 and 376,810.52
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Solution
The fourth proportional to 678,614.36, 936,530.02 and 376,810.52 is: 520,021.95
Step by Step Solution
- Step 1: Write the proportion equation
678,614.36 : 936,530.02 = 376,810.52 : x - Step 2: Convert to fraction form
678,614.36/936,530.02 = 376,810.52/x - Step 3: Cross multiply
678,614.36x = 936,530.02 × 376,810.52 - Step 4: Simplify right side
678,614.36x = 352,894,363,831.81 - Step 5: Solve for x
x = 352,894,363,831.81/678,614.36 - Step 6: Final answer
x = 520,021.95
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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.