Finding the Fourth Proportional to 685,283.99, 945,699.38 and 379,365.49
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Solution
The fourth proportional to 685,283.99, 945,699.38 and 379,365.49 is: 523,528.51
Step by Step Solution
- Step 1: Write the proportion equation
685,283.99 : 945,699.38 = 379,365.49 : x - Step 2: Convert to fraction form
685,283.99/945,699.38 = 379,365.49/x - Step 3: Cross multiply
685,283.99x = 945,699.38 × 379,365.49 - Step 4: Simplify right side
685,283.99x = 358,765,708,686.40 - Step 5: Solve for x
x = 358,765,708,686.40/685,283.99 - Step 6: Final answer
x = 523,528.51
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.