Finding the Fourth Proportional to 1,560,679.18, 2,153,884.98 and 979,997.92
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Solution
The fourth proportional to 1,560,679.18, 2,153,884.98 and 979,997.92 is: 1,352,489.88
Step by Step Solution
- Step 1: Write the proportion equation
1,560,679.18 : 2,153,884.98 = 979,997.92 : x - Step 2: Convert to fraction form
1,560,679.18/2,153,884.98 = 979,997.92/x - Step 3: Cross multiply
1,560,679.18x = 2,153,884.98 × 979,997.92 - Step 4: Simplify right side
1,560,679.18x = 2,110,802,800,319.24 - Step 5: Solve for x
x = 2,110,802,800,319.24/1,560,679.18 - Step 6: Final answer
x = 1,352,489.88
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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.