Finding the Fourth Proportional to 855,451.76, 1,283,178.40 and 256,475.84
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Solution
The fourth proportional to 855,451.76, 1,283,178.40 and 256,475.84 is: 384,713.99
Step by Step Solution
- Step 1: Write the proportion equation
855,451.76 : 1,283,178.40 = 256,475.84 : x - Step 2: Convert to fraction form
855,451.76/1,283,178.40 = 256,475.84/x - Step 3: Cross multiply
855,451.76x = 1,283,178.40 × 256,475.84 - Step 4: Simplify right side
855,451.76x = 329,104,258,009.86 - Step 5: Solve for x
x = 329,104,258,009.86/855,451.76 - Step 6: Final answer
x = 384,713.99
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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.