Finding the Fourth Proportional to 855,327.48, 1,283,276.16 and 286,764.84
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Solution
The fourth proportional to 855,327.48, 1,283,276.16 and 286,764.84 is: 430,242.79
Step by Step Solution
- Step 1: Write the proportion equation
855,327.48 : 1,283,276.16 = 286,764.84 : x - Step 2: Convert to fraction form
855,327.48/1,283,276.16 = 286,764.84/x - Step 3: Cross multiply
855,327.48x = 1,283,276.16 × 286,764.84 - Step 4: Simplify right side
855,327.48x = 367,998,482,698.21 - Step 5: Solve for x
x = 367,998,482,698.21/855,327.48 - Step 6: Final answer
x = 430,242.79
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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.