Finding the Fourth Proportional to 720,219.58, 993,923.08 and 397,950.44
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Solution
The fourth proportional to 720,219.58, 993,923.08 and 397,950.44 is: 549,182.69
Step by Step Solution
- Step 1: Write the proportion equation
720,219.58 : 993,923.08 = 397,950.44 : x - Step 2: Convert to fraction form
720,219.58/993,923.08 = 397,950.44/x - Step 3: Cross multiply
720,219.58x = 993,923.08 × 397,950.44 - Step 4: Simplify right side
720,219.58x = 395,532,128,502.09 - Step 5: Solve for x
x = 395,532,128,502.09/720,219.58 - Step 6: Final answer
x = 549,182.69
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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.