Finding the Fourth Proportional to 685,159.29, 945,495.68 and 379,236.26
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Solution
The fourth proportional to 685,159.29, 945,495.68 and 379,236.26 is: 523,332.68
Step by Step Solution
- Step 1: Write the proportion equation
685,159.29 : 945,495.68 = 379,236.26 : x - Step 2: Convert to fraction form
685,159.29/945,495.68 = 379,236.26/x - Step 3: Cross multiply
685,159.29x = 945,495.68 × 379,236.26 - Step 4: Simplify right side
685,159.29x = 358,566,245,529.36 - Step 5: Solve for x
x = 358,566,245,529.36/685,159.29 - Step 6: Final answer
x = 523,332.68
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1.5x scale
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.