Finding the Fourth Proportional to 755,621.36, 1,042,765.08 and 416,090.96
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Solution
The fourth proportional to 755,621.36, 1,042,765.08 and 416,090.96 is: 574,209.71
Step by Step Solution
- Step 1: Write the proportion equation
755,621.36 : 1,042,765.08 = 416,090.96 : x - Step 2: Convert to fraction form
755,621.36/1,042,765.08 = 416,090.96/x - Step 3: Cross multiply
755,621.36x = 1,042,765.08 × 416,090.96 - Step 4: Simplify right side
755,621.36x = 433,885,123,191.68 - Step 5: Solve for x
x = 433,885,123,191.68/755,621.36 - Step 6: Final answer
x = 574,209.71
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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.