Finding the Fourth Proportional to 457,613.64, 631,506.99 and 278,765.64
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Solution
The fourth proportional to 457,613.64, 631,506.99 and 278,765.64 is: 384,696.68
Step by Step Solution
- Step 1: Write the proportion equation
457,613.64 : 631,506.99 = 278,765.64 : x - Step 2: Convert to fraction form
457,613.64/631,506.99 = 278,765.64/x - Step 3: Cross multiply
457,613.64x = 631,506.99 × 278,765.64 - Step 4: Simplify right side
457,613.64x = 176,042,450,231.82 - Step 5: Solve for x
x = 176,042,450,231.82/457,613.64 - Step 6: Final answer
x = 384,696.68
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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.