Finding the Fourth Proportional to 519,556.22, 717,107.12 and 304,765.49
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Solution
The fourth proportional to 519,556.22, 717,107.12 and 304,765.49 is: 420,646.49
Step by Step Solution
- Step 1: Write the proportion equation
519,556.22 : 717,107.12 = 304,765.49 : x - Step 2: Convert to fraction form
519,556.22/717,107.12 = 304,765.49/x - Step 3: Cross multiply
519,556.22x = 717,107.12 × 304,765.49 - Step 4: Simplify right side
519,556.22x = 218,549,499,985.67 - Step 5: Solve for x
x = 218,549,499,985.67/519,556.22 - Step 6: Final answer
x = 420,646.49
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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.