Finding the Fourth Proportional to 665,988.88, 996,525.72 and 399,911.44
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Solution
The fourth proportional to 665,988.88, 996,525.72 and 399,911.44 is: 598,391.43
Step by Step Solution
- Step 1: Write the proportion equation
665,988.88 : 996,525.72 = 399,911.44 : x - Step 2: Convert to fraction form
665,988.88/996,525.72 = 399,911.44/x - Step 3: Cross multiply
665,988.88x = 996,525.72 × 399,911.44 - Step 4: Simplify right side
665,988.88x = 398,522,035,682.24 - Step 5: Solve for x
x = 398,522,035,682.24/665,988.88 - Step 6: Final answer
x = 598,391.43
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.