Finding the Fourth Proportional to 458,015.26, 686,690.74 and 307,883.18
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Solution
The fourth proportional to 458,015.26, 686,690.74 and 307,883.18 is: 461,601.49
Step by Step Solution
- Step 1: Write the proportion equation
458,015.26 : 686,690.74 = 307,883.18 : x - Step 2: Convert to fraction form
458,015.26/686,690.74 = 307,883.18/x - Step 3: Cross multiply
458,015.26x = 686,690.74 × 307,883.18 - Step 4: Simplify right side
458,015.26x = 211,420,526,080.78 - Step 5: Solve for x
x = 211,420,526,080.78/458,015.26 - Step 6: Final answer
x = 461,601.49
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.