Finding the Fourth Proportional to 919,996.74, 1,269,609.84 and 512,103.06
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Solution
The fourth proportional to 919,996.74, 1,269,609.84 and 512,103.06 is: 706,710.20
Step by Step Solution
- Step 1: Write the proportion equation
919,996.74 : 1,269,609.84 = 512,103.06 : x - Step 2: Convert to fraction form
919,996.74/1,269,609.84 = 512,103.06/x - Step 3: Cross multiply
919,996.74x = 1,269,609.84 × 512,103.06 - Step 4: Simplify right side
919,996.74x = 650,171,084,070.11 - Step 5: Solve for x
x = 650,171,084,070.11/919,996.74 - Step 6: Final answer
x = 706,710.20
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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.