Finding the Fourth Proportional to 672,113.84, 927,859.91 and 455,467.07
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Solution
The fourth proportional to 672,113.84, 927,859.91 and 455,467.07 is: 628,776.86
Step by Step Solution
- Step 1: Write the proportion equation
672,113.84 : 927,859.91 = 455,467.07 : x - Step 2: Convert to fraction form
672,113.84/927,859.91 = 455,467.07/x - Step 3: Cross multiply
672,113.84x = 927,859.91 × 455,467.07 - Step 4: Simplify right side
672,113.84x = 422,609,627,661.53 - Step 5: Solve for x
x = 422,609,627,661.53/672,113.84 - Step 6: Final answer
x = 628,776.86
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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.