Finding the Fourth Proportional to 480,319.74, 720,478.70 and 451,090.49
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Solution
The fourth proportional to 480,319.74, 720,478.70 and 451,090.49 is: 676,634.87
Step by Step Solution
- Step 1: Write the proportion equation
480,319.74 : 720,478.70 = 451,090.49 : x - Step 2: Convert to fraction form
480,319.74/720,478.70 = 451,090.49/x - Step 3: Cross multiply
480,319.74x = 720,478.70 × 451,090.49 - Step 4: Simplify right side
480,319.74x = 325,001,085,651.31 - Step 5: Solve for x
x = 325,001,085,651.31/480,319.74 - Step 6: Final answer
x = 676,634.87
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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.