Finding the Fourth Proportional to 619,728.99, 855,242.97 and 347,813.74
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Solution
The fourth proportional to 619,728.99, 855,242.97 and 347,813.74 is: 479,992.47
Step by Step Solution
- Step 1: Write the proportion equation
619,728.99 : 855,242.97 = 347,813.74 : x - Step 2: Convert to fraction form
619,728.99/855,242.97 = 347,813.74/x - Step 3: Cross multiply
619,728.99x = 855,242.97 × 347,813.74 - Step 4: Simplify right side
619,728.99x = 297,465,250,958.42 - Step 5: Solve for x
x = 297,465,250,958.42/619,728.99 - Step 6: Final answer
x = 479,992.47
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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.