Finding the Fourth Proportional to 487,430.05, 672,716.13 and 272,582.21
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Solution
The fourth proportional to 487,430.05, 672,716.13 and 272,582.21 is: 376,198.49
Step by Step Solution
- Step 1: Write the proportion equation
487,430.05 : 672,716.13 = 272,582.21 : x - Step 2: Convert to fraction form
487,430.05/672,716.13 = 272,582.21/x - Step 3: Cross multiply
487,430.05x = 672,716.13 × 272,582.21 - Step 4: Simplify right side
487,430.05x = 183,370,449,418.05 - Step 5: Solve for x
x = 183,370,449,418.05/487,430.05 - Step 6: Final answer
x = 376,198.49
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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.