Finding the Fourth Proportional to 438,114.70, 655,714.05 and 317,829.70
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Solution
The fourth proportional to 438,114.70, 655,714.05 and 317,829.70 is: 475,686.85
Step by Step Solution
- Step 1: Write the proportion equation
438,114.70 : 655,714.05 = 317,829.70 : x - Step 2: Convert to fraction form
438,114.70/655,714.05 = 317,829.70/x - Step 3: Cross multiply
438,114.70x = 655,714.05 × 317,829.70 - Step 4: Simplify right side
438,114.70x = 208,405,399,797.29 - Step 5: Solve for x
x = 208,405,399,797.29/438,114.70 - Step 6: Final answer
x = 475,686.85
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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.