Finding the Fourth Proportional to 775,057.20, 1,069,615.34 and 430,898.77
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Solution
The fourth proportional to 775,057.20, 1,069,615.34 and 430,898.77 is: 594,660.54
Step by Step Solution
- Step 1: Write the proportion equation
775,057.20 : 1,069,615.34 = 430,898.77 : x - Step 2: Convert to fraction form
775,057.20/1,069,615.34 = 430,898.77/x - Step 3: Cross multiply
775,057.20x = 1,069,615.34 × 430,898.77 - Step 4: Simplify right side
775,057.20x = 460,895,934,379.13 - Step 5: Solve for x
x = 460,895,934,379.13/775,057.20 - Step 6: Final answer
x = 594,660.54
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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.