Finding the Fourth Proportional to 861,509.22, 1,292,263.47 and 230,406.63
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Solution
The fourth proportional to 861,509.22, 1,292,263.47 and 230,406.63 is: 345,609.84
Step by Step Solution
- Step 1: Write the proportion equation
861,509.22 : 1,292,263.47 = 230,406.63 : x - Step 2: Convert to fraction form
861,509.22/1,292,263.47 = 230,406.63/x - Step 3: Cross multiply
861,509.22x = 1,292,263.47 × 230,406.63 - Step 4: Simplify right side
861,509.22x = 297,746,066,348.82 - Step 5: Solve for x
x = 297,746,066,348.82/861,509.22 - Step 6: Final answer
x = 345,609.84
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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.