Finding the Fourth Proportional to 420,350.91, 580,066.68 and 239,037.67
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Solution
The fourth proportional to 420,350.91, 580,066.68 and 239,037.67 is: 329,861.99
Step by Step Solution
- Step 1: Write the proportion equation
420,350.91 : 580,066.68 = 239,037.67 : x - Step 2: Convert to fraction form
420,350.91/580,066.68 = 239,037.67/x - Step 3: Cross multiply
420,350.91x = 580,066.68 × 239,037.67 - Step 4: Simplify right side
420,350.91x = 138,657,787,631.84 - Step 5: Solve for x
x = 138,657,787,631.84/420,350.91 - Step 6: Final answer
x = 329,861.99
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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.