Finding the Fourth Proportional to 646,489.97, 968,750.79 and 309,066.85
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Solution
The fourth proportional to 646,489.97, 968,750.79 and 309,066.85 is: 463,129.78
Step by Step Solution
- Step 1: Write the proportion equation
646,489.97 : 968,750.79 = 309,066.85 : x - Step 2: Convert to fraction form
646,489.97/968,750.79 = 309,066.85/x - Step 3: Cross multiply
646,489.97x = 968,750.79 × 309,066.85 - Step 4: Simplify right side
646,489.97x = 299,408,755,100.31 - Step 5: Solve for x
x = 299,408,755,100.31/646,489.97 - Step 6: Final answer
x = 463,129.78
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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.