Finding the Fourth Proportional to 817,804.70, 1,226,958.06 and 418,725.67
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Solution
The fourth proportional to 817,804.70, 1,226,958.06 and 418,725.67 is: 628,217.03
Step by Step Solution
- Step 1: Write the proportion equation
817,804.70 : 1,226,958.06 = 418,725.67 : x - Step 2: Convert to fraction form
817,804.70/1,226,958.06 = 418,725.67/x - Step 3: Cross multiply
817,804.70x = 1,226,958.06 × 418,725.67 - Step 4: Simplify right side
817,804.70x = 513,758,835,735.40 - Step 5: Solve for x
x = 513,758,835,735.40/817,804.70 - Step 6: Final answer
x = 628,217.03
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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.