Finding the Fourth Proportional to 485,023.23, 727,622.33 and 218,909.07
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Solution
The fourth proportional to 485,023.23, 727,622.33 and 218,909.07 is: 328,403.09
Step by Step Solution
- Step 1: Write the proportion equation
485,023.23 : 727,622.33 = 218,909.07 : x - Step 2: Convert to fraction form
485,023.23/727,622.33 = 218,909.07/x - Step 3: Cross multiply
485,023.23x = 727,622.33 × 218,909.07 - Step 4: Simplify right side
485,023.23x = 159,283,126,476.99 - Step 5: Solve for x
x = 159,283,126,476.99/485,023.23 - Step 6: Final answer
x = 328,403.09
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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.