Finding the Fourth Proportional to 1,128,706.38, 1,693,218.42 and 330,048
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Solution
The fourth proportional to 1,128,706.38, 1,693,218.42 and 330,048 is: 495,118.45
Step by Step Solution
- Step 1: Write the proportion equation
1,128,706.38 : 1,693,218.42 = 330,048 : x - Step 2: Convert to fraction form
1,128,706.38/1,693,218.42 = 330,048/x - Step 3: Cross multiply
1,128,706.38x = 1,693,218.42 × 330,048 - Step 4: Simplify right side
1,128,706.38x = 558,843,353,084.16 - Step 5: Solve for x
x = 558,843,353,084.16/1,128,706.38 - Step 6: Final answer
x = 495,118.45
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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.