Finding the Fourth Proportional to 745,568,586.48, 1,028,840,385.24 and 427,955,455.92
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Solution
The fourth proportional to 745,568,586.48, 1,028,840,385.24 and 427,955,455.92 is: 590,553,121.63
Step by Step Solution
- Step 1: Write the proportion equation
745,568,586.48 : 1,028,840,385.24 = 427,955,455.92 : x - Step 2: Convert to fraction form
745,568,586.48/1,028,840,385.24 = 427,955,455.92/x - Step 3: Cross multiply
745,568,586.48x = 1,028,840,385.24 × 427,955,455.92 - Step 4: Simplify right side
745,568,586.48x = 440,297,856,134,292,672 - Step 5: Solve for x
x = 440,297,856,134,292,672/745,568,586.48 - Step 6: Final answer
x = 590,553,121.63
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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.