Finding the Fourth Proportional to 521,993.58, 720,401.70 and 292,589.84
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Solution
The fourth proportional to 521,993.58, 720,401.70 and 292,589.84 is: 403,802.32
Step by Step Solution
- Step 1: Write the proportion equation
521,993.58 : 720,401.70 = 292,589.84 : x - Step 2: Convert to fraction form
521,993.58/720,401.70 = 292,589.84/x - Step 3: Cross multiply
521,993.58x = 720,401.70 × 292,589.84 - Step 4: Simplify right side
521,993.58x = 210,782,218,138.73 - Step 5: Solve for x
x = 210,782,218,138.73/521,993.58 - Step 6: Final answer
x = 403,802.32
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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.