Finding the Fourth Proportional to 317,848.05, 479,004.84 and 286,297.74
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Solution
The fourth proportional to 317,848.05, 479,004.84 and 286,297.74 is: 431,457.75
Step by Step Solution
- Step 1: Write the proportion equation
317,848.05 : 479,004.84 = 286,297.74 : x - Step 2: Convert to fraction form
317,848.05/479,004.84 = 286,297.74/x - Step 3: Cross multiply
317,848.05x = 479,004.84 × 286,297.74 - Step 4: Simplify right side
317,848.05x = 137,138,003,141.06 - Step 5: Solve for x
x = 137,138,003,141.06/317,848.05 - Step 6: Final answer
x = 431,457.75
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.