Finding the Fourth Proportional to 874,437.42, 1,206,691.79 and 487,232.84
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Solution
The fourth proportional to 874,437.42, 1,206,691.79 and 487,232.84 is: 672,363.56
Step by Step Solution
- Step 1: Write the proportion equation
874,437.42 : 1,206,691.79 = 487,232.84 : x - Step 2: Convert to fraction form
874,437.42/1,206,691.79 = 487,232.84/x - Step 3: Cross multiply
874,437.42x = 1,206,691.79 × 487,232.84 - Step 4: Simplify right side
874,437.42x = 587,939,859,376.76 - Step 5: Solve for x
x = 587,939,859,376.76/874,437.42 - Step 6: Final answer
x = 672,363.56
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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.