Finding the Fourth Proportional to 487,655.19, 672,964.74 and 269,872.90
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Solution
The fourth proportional to 487,655.19, 672,964.74 and 269,872.90 is: 372,424.92
Step by Step Solution
- Step 1: Write the proportion equation
487,655.19 : 672,964.74 = 269,872.90 : x - Step 2: Convert to fraction form
487,655.19/672,964.74 = 269,872.90/x - Step 3: Cross multiply
487,655.19x = 672,964.74 × 269,872.90 - Step 4: Simplify right side
487,655.19x = 181,614,944,299.13 - Step 5: Solve for x
x = 181,614,944,299.13/487,655.19 - Step 6: Final answer
x = 372,424.92
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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.