Finding the Fourth Proportional to 497,453.64, 686,291.09 and 306,134.88
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Solution
The fourth proportional to 497,453.64, 686,291.09 and 306,134.88 is: 422,346.17
Step by Step Solution
- Step 1: Write the proportion equation
497,453.64 : 686,291.09 = 306,134.88 : x - Step 2: Convert to fraction form
497,453.64/686,291.09 = 306,134.88/x - Step 3: Cross multiply
497,453.64x = 686,291.09 × 306,134.88 - Step 4: Simplify right side
497,453.64x = 210,097,638,951.55 - Step 5: Solve for x
x = 210,097,638,951.55/497,453.64 - Step 6: Final answer
x = 422,346.17
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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.