Finding the Fourth Proportional to 522,073.80, 783,110.70 and 312,121.80
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Solution
The fourth proportional to 522,073.80, 783,110.70 and 312,121.80 is: 468,182.70
Step by Step Solution
- Step 1: Write the proportion equation
522,073.80 : 783,110.70 = 312,121.80 : x - Step 2: Convert to fraction form
522,073.80/783,110.70 = 312,121.80/x - Step 3: Cross multiply
522,073.80x = 783,110.70 × 312,121.80 - Step 4: Simplify right side
522,073.80x = 244,425,921,283.26 - Step 5: Solve for x
x = 244,425,921,283.26/522,073.80 - Step 6: Final answer
x = 468,182.70
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1.5x scale
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.