Finding the Fourth Proportional to 459,475.99, 689,123.12 and 436,690.81
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Solution
The fourth proportional to 459,475.99, 689,123.12 and 436,690.81 is: 654,949.85
Step by Step Solution
- Step 1: Write the proportion equation
459,475.99 : 689,123.12 = 436,690.81 : x - Step 2: Convert to fraction form
459,475.99/689,123.12 = 436,690.81/x - Step 3: Cross multiply
459,475.99x = 689,123.12 × 436,690.81 - Step 4: Simplify right side
459,475.99x = 300,933,731,279.07 - Step 5: Solve for x
x = 300,933,731,279.07/459,475.99 - Step 6: Final answer
x = 654,949.85
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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.