Finding the Fourth Proportional to 438,244.80, 655,984.80 and 313,828.80
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Solution
The fourth proportional to 438,244.80, 655,984.80 and 313,828.80 is: 469,753.26
Step by Step Solution
- Step 1: Write the proportion equation
438,244.80 : 655,984.80 = 313,828.80 : x - Step 2: Convert to fraction form
438,244.80/655,984.80 = 313,828.80/x - Step 3: Cross multiply
438,244.80x = 655,984.80 × 313,828.80 - Step 4: Simplify right side
438,244.80x = 205,866,922,602.24 - Step 5: Solve for x
x = 205,866,922,602.24/438,244.80 - Step 6: Final answer
x = 469,753.26
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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.