Finding the Fourth Proportional to 1,128,373.37, 1,692,981.42 and 454,645.82
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Solution
The fourth proportional to 1,128,373.37, 1,692,981.42 and 454,645.82 is: 682,138.50
Step by Step Solution
- Step 1: Write the proportion equation
1,128,373.37 : 1,692,981.42 = 454,645.82 : x - Step 2: Convert to fraction form
1,128,373.37/1,692,981.42 = 454,645.82/x - Step 3: Cross multiply
1,128,373.37x = 1,692,981.42 × 454,645.82 - Step 4: Simplify right side
1,128,373.37x = 769,706,919,180.68 - Step 5: Solve for x
x = 769,706,919,180.68/1,128,373.37 - Step 6: Final answer
x = 682,138.50
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.