Finding the Fourth Proportional to 497,434.97, 686,265.39 and 306,116.21
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Solution
The fourth proportional to 497,434.97, 686,265.39 and 306,116.21 is: 422,320.45
Step by Step Solution
- Step 1: Write the proportion equation
497,434.97 : 686,265.39 = 306,116.21 : x - Step 2: Convert to fraction form
497,434.97/686,265.39 = 306,116.21/x - Step 3: Cross multiply
497,434.97x = 686,265.39 × 306,116.21 - Step 4: Simplify right side
497,434.97x = 210,076,960,240.97 - Step 5: Solve for x
x = 210,076,960,240.97/497,434.97 - Step 6: Final answer
x = 422,320.45
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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.