Finding the Fourth Proportional to 619,729.99, 855,244.35 and 347,814.74
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Solution
The fourth proportional to 619,729.99, 855,244.35 and 347,814.74 is: 479,993.86
Step by Step Solution
- Step 1: Write the proportion equation
619,729.99 : 855,244.35 = 347,814.74 : x - Step 2: Convert to fraction form
619,729.99/855,244.35 = 347,814.74/x - Step 3: Cross multiply
619,729.99x = 855,244.35 × 347,814.74 - Step 4: Simplify right side
619,729.99x = 297,466,591,231.72 - Step 5: Solve for x
x = 297,466,591,231.72/619,729.99 - Step 6: Final answer
x = 479,993.86
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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.