Finding the Fourth Proportional to 708,240.38, 977,370.21 and 385,949.70
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Solution
The fourth proportional to 708,240.38, 977,370.21 and 385,949.70 is: 532,609.76
Step by Step Solution
- Step 1: Write the proportion equation
708,240.38 : 977,370.21 = 385,949.70 : x - Step 2: Convert to fraction form
708,240.38/977,370.21 = 385,949.70/x - Step 3: Cross multiply
708,240.38x = 977,370.21 × 385,949.70 - Step 4: Simplify right side
708,240.38x = 377,215,739,338.44 - Step 5: Solve for x
x = 377,215,739,338.44/708,240.38 - Step 6: Final answer
x = 532,609.76
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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.