Finding the Fourth Proportional to 861,523.02, 1,292,284.17 and 230,420.43
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Solution
The fourth proportional to 861,523.02, 1,292,284.17 and 230,420.43 is: 345,630.55
Step by Step Solution
- Step 1: Write the proportion equation
861,523.02 : 1,292,284.17 = 230,420.43 : x - Step 2: Convert to fraction form
861,523.02/1,292,284.17 = 230,420.43/x - Step 3: Cross multiply
861,523.02x = 1,292,284.17 × 230,420.43 - Step 4: Simplify right side
861,523.02x = 297,768,674,133.59 - Step 5: Solve for x
x = 297,768,674,133.59/861,523.02 - Step 6: Final answer
x = 345,630.55
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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.