Finding the Fourth Proportional to 719,794.19, 993,307.91 and 397,497.81
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Solution
The fourth proportional to 719,794.19, 993,307.91 and 397,497.81 is: 548,542.52
Step by Step Solution
- Step 1: Write the proportion equation
719,794.19 : 993,307.91 = 397,497.81 : x - Step 2: Convert to fraction form
719,794.19/993,307.91 = 397,497.81/x - Step 3: Cross multiply
719,794.19x = 993,307.91 × 397,497.81 - Step 4: Simplify right side
719,794.19x = 394,837,716,893.19 - Step 5: Solve for x
x = 394,837,716,893.19/719,794.19 - Step 6: Final answer
x = 548,542.52
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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.