Finding the Fourth Proportional to 557,042.14, 768,717.30 and 302,393.44
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Solution
The fourth proportional to 557,042.14, 768,717.30 and 302,393.44 is: 417,302.48
Step by Step Solution
- Step 1: Write the proportion equation
557,042.14 : 768,717.30 = 302,393.44 : x - Step 2: Convert to fraction form
557,042.14/768,717.30 = 302,393.44/x - Step 3: Cross multiply
557,042.14x = 768,717.30 × 302,393.44 - Step 4: Simplify right side
557,042.14x = 232,455,068,734.51 - Step 5: Solve for x
x = 232,455,068,734.51/557,042.14 - Step 6: Final answer
x = 417,302.48
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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.