Finding the Fourth Proportional to 472,799.80, 709,199.70 and 449,471.80
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Solution
The fourth proportional to 472,799.80, 709,199.70 and 449,471.80 is: 674,207.70
Step by Step Solution
- Step 1: Write the proportion equation
472,799.80 : 709,199.70 = 449,471.80 : x - Step 2: Convert to fraction form
472,799.80/709,199.70 = 449,471.80/x - Step 3: Cross multiply
472,799.80x = 709,199.70 × 449,471.80 - Step 4: Simplify right side
472,799.80x = 318,765,265,718.46 - Step 5: Solve for x
x = 318,765,265,718.46/472,799.80 - Step 6: Final answer
x = 674,207.70
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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.