Finding the Fourth Proportional to 626,879.70, 940,319.55 and 311,951.70
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Solution
The fourth proportional to 626,879.70, 940,319.55 and 311,951.70 is: 467,927.55
Step by Step Solution
- Step 1: Write the proportion equation
626,879.70 : 940,319.55 = 311,951.70 : x - Step 2: Convert to fraction form
626,879.70/940,319.55 = 311,951.70/x - Step 3: Cross multiply
626,879.70x = 940,319.55 × 311,951.70 - Step 4: Simplify right side
626,879.70x = 293,334,282,165.74 - Step 5: Solve for x
x = 293,334,282,165.74/626,879.70 - Step 6: Final answer
x = 467,927.55
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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.