Finding the Fourth Proportional to 518,110.20, 777,165.30 and 307,639.80
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Solution
The fourth proportional to 518,110.20, 777,165.30 and 307,639.80 is: 461,459.70
Step by Step Solution
- Step 1: Write the proportion equation
518,110.20 : 777,165.30 = 307,639.80 : x - Step 2: Convert to fraction form
518,110.20/777,165.30 = 307,639.80/x - Step 3: Cross multiply
518,110.20x = 777,165.30 × 307,639.80 - Step 4: Simplify right side
518,110.20x = 239,086,977,458.94 - Step 5: Solve for x
x = 239,086,977,458.94/518,110.20 - Step 6: Final answer
x = 461,459.70
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1.5x scale
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.