Finding the Fourth Proportional to 488,422.20, 732,806.10 and 471,142.20
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Solution
The fourth proportional to 488,422.20, 732,806.10 and 471,142.20 is: 706,879.99
Step by Step Solution
- Step 1: Write the proportion equation
488,422.20 : 732,806.10 = 471,142.20 : x - Step 2: Convert to fraction form
488,422.20/732,806.10 = 471,142.20/x - Step 3: Cross multiply
488,422.20x = 732,806.10 × 471,142.20 - Step 4: Simplify right side
488,422.20x = 345,255,878,127.42 - Step 5: Solve for x
x = 345,255,878,127.42/488,422.20 - Step 6: Final answer
x = 706,879.99
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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.