Finding the Fourth Proportional to 663,295.28, 915,350.57 and 376,831.09
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Solution
The fourth proportional to 663,295.28, 915,350.57 and 376,831.09 is: 520,028.65
Step by Step Solution
- Step 1: Write the proportion equation
663,295.28 : 915,350.57 = 376,831.09 : x - Step 2: Convert to fraction form
663,295.28/915,350.57 = 376,831.09/x - Step 3: Cross multiply
663,295.28x = 915,350.57 × 376,831.09 - Step 4: Simplify right side
663,295.28x = 344,932,550,669.20 - Step 5: Solve for x
x = 344,932,550,669.20/663,295.28 - Step 6: Final answer
x = 520,028.65
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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.