Finding the Fourth Proportional to 855,861.74, 1,283,917.80 and 256,870.28
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Solution
The fourth proportional to 855,861.74, 1,283,917.80 and 256,870.28 is: 385,342.99
Step by Step Solution
- Step 1: Write the proportion equation
855,861.74 : 1,283,917.80 = 256,870.28 : x - Step 2: Convert to fraction form
855,861.74/1,283,917.80 = 256,870.28/x - Step 3: Cross multiply
855,861.74x = 1,283,917.80 × 256,870.28 - Step 4: Simplify right side
855,861.74x = 329,800,324,782.98 - Step 5: Solve for x
x = 329,800,324,782.98/855,861.74 - Step 6: Final answer
x = 385,342.99
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1.5x scale
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.