Finding the Fourth Proportional to 518,768.99, 715,883.58 and 286,205.24
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Solution
The fourth proportional to 518,768.99, 715,883.58 and 286,205.24 is: 394,953.50
Step by Step Solution
- Step 1: Write the proportion equation
518,768.99 : 715,883.58 = 286,205.24 : x - Step 2: Convert to fraction form
518,768.99/715,883.58 = 286,205.24/x - Step 3: Cross multiply
518,768.99x = 715,883.58 × 286,205.24 - Step 4: Simplify right side
518,768.99x = 204,889,628,246.54 - Step 5: Solve for x
x = 204,889,628,246.54/518,768.99 - Step 6: Final answer
x = 394,953.50
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1.5x scale
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.