Finding the Fourth Proportional to 480,021.70, 720,032.55 and 445,029.70
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Solution
The fourth proportional to 480,021.70, 720,032.55 and 445,029.70 is: 667,544.55
Step by Step Solution
- Step 1: Write the proportion equation
480,021.70 : 720,032.55 = 445,029.70 : x - Step 2: Convert to fraction form
480,021.70/720,032.55 = 445,029.70/x - Step 3: Cross multiply
480,021.70x = 720,032.55 × 445,029.70 - Step 4: Simplify right side
480,021.70x = 320,435,869,716.74 - Step 5: Solve for x
x = 320,435,869,716.74/480,021.70 - Step 6: Final answer
x = 667,544.55
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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.